# Jakub Kowalski — AI Agents & Automation · CRM & ERP · SaaS · APIs & Backend Systems > Jakub Kowalski is a Polish software professional focused on AI agents and automation, CRM and ERP systems, SaaS products, APIs, backend engineering, web and mobile applications, e-commerce, and production infrastructure. Website: https://jakub-kowalski-portfolio.vercel.app # About Jakub Kowalski Jakub Kowalski is a Polish software professional focused on AI agents and automation, CRM and ERP systems, SaaS products, APIs, backend engineering, web and mobile applications, e-commerce, and production infrastructure. ## Focus I design and build production-grade software: AI agents and automated workflows, CRM and ERP systems, SaaS products, and the APIs and backend systems that connect them. Core areas: AI Agents & Automation, CRM & ERP, SaaS, APIs & Backend Systems. ## Engineering journey 11+ years of professional engineering, currently at Senior Engineer level. - 2009: Technical Secondary Education (5-year Polish Technikum, Matura) - 2009-2013: Bachelor of Engineering — Inżynier (BEng equivalent), Warsaw University of Technology. Field: Computing and software engineering - 2013-2015: Master of Engineering — Magister Inżynier (MSc / MEng equivalent), AGH University of Krakow. Field: Computing and software engineering - Areas of study across both degrees: Mathematics, Algorithms & Data Structures, Operating Systems, Databases, Software Engineering, Artificial Intelligence, Cryptography & Security, Embedded Systems, Probability & Statistics - 2015-2017: Junior Engineer. Built strong production engineering fundamentals through hands-on implementation, debugging, testing, maintenance, and collaboration with experienced engineers. - 2017-2021: Engineer. Progressed toward independent ownership of increasingly complex systems, technical problem solving, integrations, architecture decisions, performance improvements, and delivery responsibility. - 2021-present: Senior Engineer. Advanced into senior-level engineering responsibilities including architecture, complex system design, technical leadership, optimization, mentoring, cross-functional collaboration, and ownership of high-impact engineering work. # Services offered by Jakub Kowalski > Software services across AI agents and automation, CRM and ERP systems, SaaS products, APIs and backend engineering, web and mobile applications, e-commerce and payments, and cloud and DevOps. ## AI Agents & Automation Design and build AI agents, LLM-powered workflows, RAG systems, integrations, and process automation connected to real business tools. - Best suited for: Teams that want to automate multi-step processes and connect language models to operational systems. - Typical outcomes: Tool-using agents with clear roles, guardrails and approval steps; Retrieval over company knowledge with traceable sources; Automated workflows connected to existing business tools - Capabilities: AI agents, LLM workflows, RAG, Process automation ## CRM & ERP Systems Build and extend business systems for customers, sales, operations, inventory, reporting, and cross-platform workflows. - Best suited for: Businesses that need their customer and operations data in one reliable system shaped around how they work. - Typical outcomes: Customer, sales and operations workflows; Integrations that keep business systems in sync; Reporting and operational dashboards - Capabilities: CRM, ERP, Integrations, Reporting ## SaaS Product Development Develop multi-tenant software products from backend architecture and billing to dashboards, administration, and customer-facing workflows. - Best suited for: Founders and product teams building or growing a subscription software product. - Typical outcomes: Multi-tenant architecture with accounts, roles and permissions; Subscription billing and plan management; Customer dashboards and internal administration - Capabilities: Multi-tenancy, Billing, Dashboards, Admin tools ## API & Backend Engineering Design secure APIs, integrations, authentication, event-driven workflows, background processing, and scalable backend services. - Best suited for: Products and platforms that need dependable APIs, integrations and backend services. - Typical outcomes: Documented APIs with authentication and versioning; Event-driven workflows and background processing; Data models and services designed to scale - Capabilities: APIs, Authentication, Events & queues, Databases ## Web Application Development Build responsive, high-performance web applications, dashboards, portals, internal tools, and interactive customer experiences. - Best suited for: Teams that need a fast, accessible web application their users and staff rely on daily. - Typical outcomes: Responsive interfaces built for performance and accessibility; Dashboards, portals and internal tools; Interactive experiences connected to real data - Capabilities: Web apps, Dashboards, Portals, Performance ## Mobile Application Development Develop cross-platform and native mobile applications with reliable APIs, synchronization, notifications, and offline-capable workflows. - Best suited for: Products that need a mobile experience backed by the same reliable data and APIs as the web. - Typical outcomes: Cross-platform or native apps from a shared product design; Offline-capable data with synchronization; Push notifications and secure on-device storage - Capabilities: Cross-platform, Native, Offline sync, Notifications ## E-commerce & Payments Build commerce experiences, marketplaces, subscriptions, payment integrations, checkout systems, and order-processing workflows. - Best suited for: Businesses selling online that need custom storefronts, checkout or payment flows. - Typical outcomes: Storefronts and headless commerce experiences; Checkout, subscription and payment integrations; Order processing and fulfilment workflows - Capabilities: Storefronts, Checkout, Payments, Orders ## Cloud & DevOps Containerize, deploy, automate, monitor, and operate production applications across cloud and self-hosted infrastructure. - Best suited for: Teams that want repeatable deployments and applications that are observable in production. - Typical outcomes: Containerized services with automated CI/CD; Infrastructure as code for cloud or self-hosted environments; Monitoring, logging and alerting for production systems - Capabilities: Containers, CI/CD, Infrastructure as code, Observability # Projects by Jakub Kowalski ## AI Brand Photo Studio > AI & Automation. A production-ready ai brand photo studio designed for independent brands and small agencies, with a focused workflow, polished UI and a backend built for real usage. AI Brand Photo Studio is a compact production product for independent brands and small agencies. The experience is intentionally narrow: users upload a reference image, select a creative direction, generate variants, and export approved assets. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: Full-stack AI engineer - Year: 2022 - Duration: 10 weeks - Technologies: Next.js, TypeScript, FastAPI, PostgreSQL, OpenAI, Docker - Client: Alex, Northline Works, Poland - Client rating: 5 out of 5 - Client review: "The ai brand photo studio made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://www.nanoshots.app/ ## AI Resume Tailoring Assistant > AI & Automation. A production-ready ai resume tailoring assistant designed for job seekers and career coaches, with a focused workflow, polished UI and a backend built for real usage. AI Resume Tailoring Assistant is a compact production product for job seekers and career coaches. The experience is intentionally narrow: users upload a resume, paste a job description, review targeted improvements, and export a tailored version. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: Product engineer - Year: 2019 - Duration: 8 weeks - Technologies: Next.js, TypeScript, FastAPI, PostgreSQL, OpenAI, Stripe, Vercel - Client: Rose, Brightfern Studio, Germany - Client rating: 5 out of 5 - Client review: "The ai resume tailoring assistant made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://resuai.framer.website/ ## Adaptive Fitness & Nutrition Coach > AI & Automation. A production-ready adaptive fitness & nutrition coach designed for people following structured fitness plans, with a focused workflow, polished UI and a backend built for real usage. Adaptive Fitness & Nutrition Coach is a compact production product for people following structured fitness plans. The experience is intentionally narrow: users complete onboarding, receive an adaptive plan, log meals and workouts, and get contextual coaching. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: Mobile & AI engineer - Year: 2023 - Duration: 12 weeks - Technologies: React Native, Expo, TypeScript, Supabase, PostgreSQL, OpenAI - Client: Maya, Aster Ridge, Spain - Client rating: 5 out of 5 - Client review: "The adaptive fitness & nutrition coach made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://apps.apple.com/us/app/lunafit-fitness-for-real-life/id6449685043 ## AI Meal Planner & Grocery Assistant > AI & Automation. A production-ready ai meal planner & grocery assistant designed for busy households with dietary preferences, with a focused workflow, polished UI and a backend built for real usage. AI Meal Planner & Grocery Assistant is a compact production product for busy households with dietary preferences. The experience is intentionally narrow: users set dietary constraints, generate a weekly meal plan, save recipes, and produce a consolidated shopping list. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: Full-stack developer - Year: 2025 - Duration: 9 weeks - Technologies: React Native, TypeScript, FastAPI, PostgreSQL, OpenAI - Client: Theo, Cedar Loop, France - Client rating: 5 out of 5 - Client review: "The ai meal planner & grocery assistant made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://spark.mwm.ai/en/apps/mealmind-ai-recipe-generator/6747687541 ## Ingredient-to-Recipe Vision App > AI & Automation. A production-ready ingredient-to-recipe vision app designed for home cooks who want to use what they already have, with a focused workflow, polished UI and a backend built for real usage. Ingredient-to-Recipe Vision App is a compact production product for home cooks who want to use what they already have. The experience is intentionally narrow: users photograph ingredients, confirm detected items, generate recipes, and save favorites for offline use. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: AI product developer - Year: 2025 - Duration: 8 weeks - Technologies: React Native, Expo, TypeScript, Python, FastAPI, PostgreSQL - Client: Lina, Oak & Signal, Spain - Client rating: 5 out of 5 - Client review: "The ingredient-to-recipe vision app made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://mwm.ai/apps/foodsnap-ai-recipe-generator/6738016725 ## Competitive Intelligence Research Agent > AI & Automation. A production-ready competitive intelligence research agent designed for small SaaS founders and product teams, with a focused workflow, polished UI and a backend built for real usage. Competitive Intelligence Research Agent is a compact production product for small SaaS founders and product teams. The experience is intentionally narrow: users track a market, collect competitor signals, summarize changes, and turn findings into a compact research brief. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: Founder & product engineer - Year: 2026 - Duration: 14 weeks - Technologies: Next.js, TypeScript, Supabase, PostgreSQL, OpenAI - Client: Jordan, Juniper House, Italy - Client rating: 5 out of 5 - Client review: "The competitive intelligence research agent made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://www.nyachieo.com/work/falcoscan ## AI Lecture Notes & Voice Tutor > AI & Automation. A production-ready ai lecture notes & voice tutor designed for university students studying from their own lecture material, with a focused workflow, polished UI and a backend built for real usage. AI Lecture Notes & Voice Tutor is a compact production product for university students studying from their own lecture material. The experience is intentionally narrow: users upload notes, ask contextual questions, listen to explanations, and revisit saved study sessions. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: Full-stack AI developer - Year: 2024 - Duration: 12 weeks - Technologies: Next.js, TypeScript, Node.js, Supabase, Google Gemini - Client: Priya, Blue Finch Co, Netherlands - Client rating: 5 out of 5 - Client review: "The ai lecture notes & voice tutor made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://www.kwadwowilson.space/ ## Personal Knowledge & Memory Assistant > AI & Automation. A production-ready personal knowledge & memory assistant designed for professionals who save notes, photos, documents and voice memos, with a focused workflow, polished UI and a backend built for real usage. Personal Knowledge & Memory Assistant is a compact production product for professionals who save notes, photos, documents and voice memos. The experience is intentionally narrow: users capture mixed content, organize it into spaces, ask natural-language questions, and retrieve cited answers. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should emphasize the boundary between deterministic product logic and AI behavior: background jobs, usage controls, review states, data privacy and the UI decisions that make generated results feel trustworthy. - Role: iOS & backend developer - Year: 2023 - Duration: 12 weeks - Technologies: Swift, SwiftUI, Supabase, PostgreSQL, OpenAI, AWS - Client: Marco, Harbor Lane, Spain - Client rating: 5 out of 5 - Client review: "The personal knowledge & memory assistant made a complex AI workflow feel surprisingly simple. Our team could review results quickly and always understood what the system was doing." - Live: https://apps.apple.com/be/app/mnemo-my-second-brain/id6756796222 ## Study Library Operations System > CRM & ERP. A production-ready study library operations system designed for independent study libraries and their members, with a focused workflow, polished UI and a backend built for real usage. Study Library Operations System is a compact production product for independent study libraries and their members. The experience is intentionally narrow: users check members in by QR, manage seats and fees, track attendance streaks, and send operational alerts. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Full-stack developer - Year: 2021 - Duration: 11 weeks - Technologies: Next.js, React, TypeScript, Firebase, Android - Client: Elena, Maple Circuit, Norway - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear study library operations system. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://shreyashrai.com/projects/taxshila-companion/ ## Multi-Tenant Client Operations Console > CRM & ERP. A production-ready multi-tenant client operations console designed for managed-service teams operating multiple client accounts, with a focused workflow, polished UI and a backend built for real usage. Multi-Tenant Client Operations Console is a compact production product for managed-service teams operating multiple client accounts. The experience is intentionally narrow: users manage tenant hierarchies, permissions, incidents, integrations, and cross-client reporting from one console. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Full-stack engineer - Year: 2019 - Duration: 16 weeks - Technologies: React, TypeScript, .NET, PostgreSQL, Redis, Docker, Azure Functions - Client: Noah, Stonebird Labs, United Kingdom - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear multi-tenant client operations console. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://georgedimitrakopoulos.com/portfolio/mssp-platform ## Equipment Rental ERP > CRM & ERP. A production-ready equipment rental ERP designed for event production companies managing equipment, jobs and logistics, with a focused workflow, polished UI and a backend built for real usage. Equipment Rental ERP is a compact production product for event production companies managing equipment, jobs and logistics. The experience is intentionally narrow: users quote jobs, reserve equipment, schedule deliveries, track returns, and reconcile invoices. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Lead full-stack engineer - Year: 2022 - Duration: 16 weeks - Technologies: Next.js, TypeScript, Node.js, PostgreSQL, Prisma, Redis, AWS - Client: Chloe, Pineframe, Finland - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear equipment rental erp. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://hideki.io/ ## Field Service Operations Platform > CRM & ERP. A production-ready field service operations platform designed for local service businesses with mobile field teams, with a focused workflow, polished UI and a backend built for real usage. Field Service Operations Platform is a compact production product for local service businesses with mobile field teams. The experience is intentionally narrow: users capture leads, assign jobs, route technicians, collect job evidence, and close invoices. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Product & cloud engineer - Year: 2019 - Duration: 14 weeks - Technologies: Next.js, TypeScript, Node.js, AWS, PostgreSQL, Terraform, Swift, Kotlin - Client: Amir, Clearpath Collective, Ireland - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear field service operations platform. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://www.getjobber.com/ ## Alumni Community CRM > CRM & ERP. A production-ready alumni community crm designed for schools and associations managing alumni relationships, with a focused workflow, polished UI and a backend built for real usage. Alumni Community CRM is a compact production product for schools and associations managing alumni relationships. The experience is intentionally narrow: users maintain member profiles, publish events, segment outreach, and monitor engagement from an admin panel. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Full-stack developer - Year: 2018 - Duration: 9 weeks - Technologies: Next.js, Node.js, MongoDB, JWT, Resend, Tailwind CSS, Vercel - Client: Sofia, Driftwood Ops, Portugal - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear alumni community crm. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://hivebrite.com/ ## Farm Operations Management App > CRM & ERP. A production-ready farm operations management app designed for agricultural teams coordinating fields, seasons and traceability, with a focused workflow, polished UI and a backend built for real usage. Farm Operations Management App is a compact production product for agricultural teams coordinating fields, seasons and traceability. The experience is intentionally narrow: users manage farming areas, log field activity, track crop stages, map locations, and preserve product traceability. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Mobile product engineer - Year: 2017 - Duration: 13 weeks - Technologies: React Native, TypeScript, Node.js, PostgreSQL, Google Maps, Firebase, AWS - Client: Leo, Kite & Field, Portugal - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear farm operations management app. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://www.farmbrite.com/ ## Member Operations App > CRM & ERP. A production-ready member operations app designed for small membership organizations and campus groups, with a focused workflow, polished UI and a backend built for real usage. Member Operations App is a compact production product for small membership organizations and campus groups. The experience is intentionally narrow: users manage authenticated members, events, internal resources, and recurring organization updates. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Full-stack mobile developer - Year: 2022 - Duration: 10 weeks - Technologies: React Native, Expo, Node.js, Firebase, MongoDB, OAuth 2.0, REST - Client: Nora, Westward Studio, Austria - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear member operations app. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://www.glueup.com/ ## Digital Document & Compliance Workspace > CRM & ERP. A production-ready digital document & compliance workspace designed for small accounting and professional-services firms, with a focused workflow, polished UI and a backend built for real usage. Digital Document & Compliance Workspace is a compact production product for small accounting and professional-services firms. The experience is intentionally narrow: users capture business documents, organize records, track compliance state, and retrieve files securely. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on translating a real operational process into role-based screens, explicit statuses and reliable permissions, while keeping the system approachable for teams without dedicated software administrators. - Role: Full-stack SaaS engineer - Year: 2023 - Duration: 12 weeks - Technologies: Next.js, TypeScript, NestJS, PostgreSQL, AWS, Docker - Client: Ethan, Silver Orchard, Chile - Client rating: 5 out of 5 - Client review: "We replaced scattered spreadsheets and messages with one clear digital document & compliance workspace. The team learned the workflow quickly and finally had a reliable view of what needed attention." - Live: https://apps.apple.com/us/app/arhivix/id6686405015 ## Habit & Task Management SaaS > SaaS Platforms. A production-ready habit & task management saas designed for individuals balancing recurring habits and daily tasks, with a focused workflow, polished UI and a backend built for real usage. Habit & Task Management SaaS is a compact production product for individuals balancing recurring habits and daily tasks. The experience is intentionally narrow: users plan tasks, track recurring habits, review streaks, and reflect on mood and progress. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Full-stack SaaS developer - Year: 2023 - Duration: 10 weeks - Technologies: Next.js, TypeScript, PostgreSQL, Supabase, PWA, Stripe, Vercel - Client: Zara, Arborline, United Kingdom - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://apps.apple.com/us/app/doxne-habit-tracker/id6754885406 ## Personal Productivity Dashboard > SaaS Platforms. A production-ready personal productivity dashboard designed for knowledge workers consolidating daily planning tools, with a focused workflow, polished UI and a backend built for real usage. Personal Productivity Dashboard is a compact production product for knowledge workers consolidating daily planning tools. The experience is intentionally narrow: users combine tasks, calendar, habits, notes, and an assistant into one daily planning surface. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Product engineer - Year: 2021 - Duration: 12 weeks - Technologies: Next.js, React, TypeScript, PostgreSQL, Google Calendar, OpenAI, PWA - Client: Owen, Mosaic North, Spain - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://flohub.vercel.app/ ## Student Grade & GPA SaaS > SaaS Platforms. A production-ready student grade & gpa saas designed for students who want clearer grade projections than their school portal provides, with a focused workflow, polished UI and a backend built for real usage. Student Grade & GPA SaaS is a compact production product for students who want clearer grade projections than their school portal provides. The experience is intentionally narrow: users sync grades, calculate GPA, model what-if scenarios, and surface upcoming academic risk. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Full-stack developer - Year: 2020 - Duration: 9 weeks - Technologies: Next.js, React, TypeScript, Firebase, PWA, Vercel - Client: Grace, Quiet Current, Canada - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://gradely.me/ ## Learning Management SaaS with AI Tutor > SaaS Platforms. A production-ready learning management saas with ai tutor designed for small education businesses delivering structured cohort content, with a focused workflow, polished UI and a backend built for real usage. Learning Management SaaS with AI Tutor is a compact production product for small education businesses delivering structured cohort content. The experience is intentionally narrow: users deliver lessons, track progress, manage subscriptions, and provide contextual AI teaching assistance. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Co-founder & software engineer - Year: 2020 - Duration: 14 weeks - Technologies: React, Node.js, Express, MongoDB, OpenAI, Stripe, OAuth 2.0 - Client: Luca, Redwood Office, Argentina - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://www.zpeterli.com/ ## Focus Timer & Analytics SaaS > SaaS Platforms. A production-ready focus timer & analytics saas designed for students and remote workers building consistent focus habits, with a focused workflow, polished UI and a backend built for real usage. Focus Timer & Analytics SaaS is a compact production product for students and remote workers building consistent focus habits. The experience is intentionally narrow: users run focus sessions, manage tasks, compare streaks, and review personal or group leaderboards. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Frontend & product developer - Year: 2021 - Duration: 7 weeks - Technologies: React, TypeScript, Tailwind CSS, Supabase, PostgreSQL, PWA, Vercel - Client: Nina, Cloudberry Co., Germany - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://toggl.com/track/ ## Scheduling & Paid Sessions SaaS > SaaS Platforms. A production-ready scheduling & paid sessions saas designed for independent consultants and coaches selling time online, with a focused workflow, polished UI and a backend built for real usage. Scheduling & Paid Sessions SaaS is a compact production product for independent consultants and coaches selling time online. The experience is intentionally narrow: users publish availability, accept bookings and payments, manage sessions, and keep client scheduling in one place. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Solo full-stack developer - Year: 2022 - Duration: 9 weeks - Technologies: Next.js, TypeScript, PostgreSQL, Stripe, Google Calendar, Resend, Vercel - Client: Sam, Open Meadow, United States - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://www.linkedin.com/posts/prem-prabhat_zyncro-february-2026-open-startup-report-activity-7433854810992369664-Zi-P ## Real-Time Exam Practice Platform > SaaS Platforms. A production-ready real-time exam practice platform designed for professional-exam candidates practicing live scenarios with peers, with a focused workflow, polished UI and a backend built for real usage. Real-Time Exam Practice Platform is a compact production product for professional-exam candidates practicing live scenarios with peers. The experience is intentionally narrow: users match candidates, synchronize timed stations, run voice/video practice, and store structured feedback. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: Full-stack engineer - Year: 2022 - Duration: 13 weeks - Technologies: React, TypeScript, Spring Boot, PostgreSQL, WebSockets, WebRTC, Docker - Client: Ava, Lumen Yard, Argentina - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://www.testportal.com/ ## Privacy-First Habit Journal > SaaS Platforms. A production-ready privacy-first habit journal designed for privacy-conscious users who want habits and journaling without cloud tracking, with a focused workflow, polished UI and a backend built for real usage. Privacy-First Habit Journal is a compact production product for privacy-conscious users who want habits and journaling without cloud tracking. The experience is intentionally narrow: users track habits, journal offline, visualize balanced progress, and complete guided challenges. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should show how onboarding, the recurring core loop, billing and retention surfaces fit into one coherent product rather than presenting a collection of unrelated features. - Role: iOS developer - Year: 2021 - Duration: 8 weeks - Technologies: SwiftUI, Swift, Push Notifications - Client: Miles, Fable Street, Spain - Client rating: 5 out of 5 - Client review: "The product feels focused rather than overloaded. The core workflow is fast, the details are polished, and new users understand the value without a long onboarding call." - Live: https://apps.apple.com/us/app/any-distance-share-workouts/id1545233932 ## Real-Time Transit Tracking API > APIs & Backend Systems. A production-ready real-time transit tracking api designed for commuters needing fast live vehicle and alert data, with a focused workflow, polished UI and a backend built for real usage. Real-Time Transit Tracking API is a compact production product for commuters needing fast live vehicle and alert data. The experience is intentionally narrow: users aggregate public transit feeds, normalize routes and stops, cache hot data, and serve web and mobile clients through one API. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Backend & iOS developer - Year: 2024 - Duration: 12 weeks - Technologies: Node.js, Express, REST, Redis, Railway, Netlify, Swift - Client: Ruby, Northstar Guild, Canada - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://www.transit.land/ ## Learning Platform Backend > APIs & Backend Systems. A production-ready learning platform backend designed for students, teachers and parents sharing assignments, audio and attendance data, with a focused workflow, polished UI and a backend built for real usage. Learning Platform Backend is a compact production product for students, teachers and parents sharing assignments, audio and attendance data. The experience is intentionally narrow: users serve role-based academic data, store audio submissions, push notifications, and power admin and iOS clients. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Full-stack systems engineer - Year: 2025 - Duration: 16 weeks - Technologies: Go, PostgreSQL, Supabase, SwiftUI, Rust, Push Notifications, Firebase - Client: Adrian, Elm Harbor, United States - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://www.coursera.org/ ## AI Internship Discovery Backend > APIs & Backend Systems. A production-ready ai internship discovery backend designed for students searching and filtering early-career opportunities, with a focused workflow, polished UI and a backend built for real usage. AI Internship Discovery Backend is a compact production product for students searching and filtering early-career opportunities. The experience is intentionally narrow: users ingest listings, classify and deduplicate roles, rank matches, and expose personalized results through a fast API. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: AI backend engineer - Year: 2023 - Duration: 9 weeks - Technologies: Next.js, FastAPI, PostgreSQL, Redis, Google Gemini, Docker, AWS - Client: Tessa, Copper Leaf, Mexico - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://ripplematch.com/ ## Real-Time Study Matching Backend > APIs & Backend Systems. A production-ready real-time study matching backend designed for students looking for study partners in real time, with a focused workflow, polished UI and a backend built for real usage. Real-Time Study Matching Backend is a compact production product for students looking for study partners in real time. The experience is intentionally narrow: users match users by topic and availability, maintain presence, coordinate chat sessions, and persist match history. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Backend & realtime engineer - Year: 2021 - Duration: 11 weeks - Technologies: Nuxt, Vue.js, Express, WebSockets, PostgreSQL, Redis, Drizzle - Client: Felix, Small Hours Studio, Brazil - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://www.focusmate.com/ ## Social Fitness API > APIs & Backend Systems. A production-ready social fitness api designed for fitness communities logging workouts and interacting around shared locations, with a focused workflow, polished UI and a backend built for real usage. Social Fitness API is a compact production product for fitness communities logging workouts and interacting around shared locations. The experience is intentionally narrow: users serve workout logs, social graphs, location data, privacy controls, and nutrition lookup from a unified backend. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Full-stack platform engineer - Year: 2019 - Duration: 14 weeks - Technologies: Spring Boot, PostgreSQL, React Native, Expo, AWS, AWS CloudFront - Client: Naomi, Anchor Point, Argentina - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://apps.apple.com/us/app/gear-workout-tracker-gym-log/id6756771550 ## Audio Social Network Backend > APIs & Backend Systems. A production-ready audio social network backend designed for communities sharing short-form voice posts, with a focused workflow, polished UI and a backend built for real usage. Audio Social Network Backend is a compact production product for communities sharing short-form voice posts. The experience is intentionally narrow: users store and stream audio, manage social graphs, moderate content, and synchronize feeds across iOS and Android clients. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Mobile & backend engineer - Year: 2024 - Duration: 12 weeks - Technologies: Flutter, Dart, Firebase - Client: Hugo, Good Day Works, Chile - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://www.clubhouse.com/ ## Flashcard & Study Content Platform Backend > APIs & Backend Systems. A production-ready flashcard & study content platform backend designed for students creating and studying large personal content libraries, with a focused workflow, polished UI and a backend built for real usage. Flashcard & Study Content Platform Backend is a compact production product for students creating and studying large personal content libraries. The experience is intentionally narrow: users store study materials, generate flashcards, track learning state, and power interactive study modes across web and mobile. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Full-stack engineer - Year: 2019 - Duration: 12 weeks - Technologies: React, TypeScript, FastAPI, PostgreSQL, Redis, Docker - Client: Celeste, Juniper & Vale, Colombia - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://quizlet.com/ ## Investment Portfolio Management Backend > APIs & Backend Systems. A production-ready investment portfolio management backend designed for small investor communities tracking managed portfolios, with a focused workflow, polished UI and a backend built for real usage. Investment Portfolio Management Backend is a compact production product for small investor communities tracking managed portfolios. The experience is intentionally narrow: users ingest market data, calculate portfolio state, process deposits and withdrawals, and expose risk and performance metrics. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should make the invisible work visible: data contracts, caching, realtime behavior, failure handling, security and observability, supported by a small end-user interface that proves the system in production. - Role: Backend product engineer - Year: 2025 - Duration: 14 weeks - Technologies: Next.js, Node.js, PostgreSQL, Redis, Docker, AWS - Client: Victor, Fieldnote Co., Australia - Client rating: 5 out of 5 - Client review: "The interface stays fast even when the underlying data changes constantly. We especially appreciated the predictable states and the reliability of the integrations." - Live: https://www.empower.com/ ## Campus Marketplace > E-commerce & Payments. A production-ready campus marketplace designed for verified university students buying, selling and offering services locally, with a focused workflow, polished UI and a backend built for real usage. Campus Marketplace is a compact production product for verified university students buying, selling and offering services locally. The experience is intentionally narrow: users verify students, publish listings, search by campus, message securely, and complete local transactions. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Full-stack mobile developer - Year: 2021 - Duration: 10 weeks - Technologies: React Native, Expo, TypeScript, Supabase, PostgreSQL, Cloudinary - Client: Layla, Hearthline, Netherlands - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://mycollegemarketplace.com/ ## Fractional Property Marketplace > E-commerce & Payments. A production-ready fractional property marketplace designed for first-time investors exploring small-ticket property ownership, with a focused workflow, polished UI and a backend built for real usage. Fractional Property Marketplace is a compact production product for first-time investors exploring small-ticket property ownership. The experience is intentionally narrow: users browse verified properties, purchase fractional units, track a portfolio, and review ownership history. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Product engineer - Year: 2026 - Duration: 13 weeks - Technologies: React Native, Next.js, TypeScript, Node.js, PostgreSQL, AWS - Client: Hiyashi, Common Thread, Japan - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://homeinnihon.com/ ## Multi-Category Local Marketplace > E-commerce & Payments. A production-ready multi-category local marketplace designed for local buyers and sellers across goods, rentals and services, with a focused workflow, polished UI and a backend built for real usage. Multi-Category Local Marketplace is a compact production product for local buyers and sellers across goods, rentals and services. The experience is intentionally narrow: users create listings, search categories, chat with sellers, verify profiles, and manage saved items. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Mobile commerce developer - Year: 2022 - Duration: 11 weeks - Technologies: React Native, TypeScript, Node.js, PostgreSQL, Cloudinary, Firebase - Client: Iris, Morrow Labs, United States - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://spark.mwm.ai/us/apps/rubanmarket/6470260681 ## Event Ticketing & Checkout Platform > E-commerce & Payments. A production-ready event ticketing & checkout platform designed for small associations selling tickets to recurring events, with a focused workflow, polished UI and a backend built for real usage. Event Ticketing & Checkout Platform is a compact production product for small associations selling tickets to recurring events. The experience is intentionally narrow: users publish events, sell tickets, process payments, validate orders, and manage attendee lists. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Full-stack developer - Year: 2025 - Duration: 10 weeks - Technologies: React, Node.js, MongoDB, AWS - Client: Aaron, Tideway Studio, Canada - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://apps.apple.com/us/app/dice-live-shows/id898358948 ## Student Hostel Booking Marketplace > E-commerce & Payments. A production-ready student hostel booking marketplace designed for students comparing and reserving housing near campus, with a focused workflow, polished UI and a backend built for real usage. Student Hostel Booking Marketplace is a compact production product for students comparing and reserving housing near campus. The experience is intentionally narrow: users search by map, compare rooms, reserve inventory, pay online, and manage bookings across student and hostel-admin apps. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Founder & full-stack engineer - Year: 2026 - Duration: 16 weeks - Technologies: Next.js, NestJS, PostgreSQL, Prisma, Google Maps, Cloudinary, Paystack - Client: Mei, Pollen Works, Canada - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://uniacco.com/ ## Cross-Border Payments App > E-commerce & Payments. A production-ready cross-border payments app designed for diaspora users sending money between currencies, with a focused workflow, polished UI and a backend built for real usage. Cross-Border Payments App is a compact production product for diaspora users sending money between currencies. The experience is intentionally narrow: users quote live rates, manage wallets, transfer money, and review transparent transaction history. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Fintech product engineer - Year: 2026 - Duration: 14 weeks - Technologies: Next.js, TypeScript, NestJS, PostgreSQL, AWS - Client: Pavel, Peak & Plain, Argentina - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://www.cendmate.com/ ## Crypto-Backed Lending App > E-commerce & Payments. A production-ready crypto-backed lending app designed for digital-asset holders borrowing against collateral, with a focused workflow, polished UI and a backend built for real usage. Crypto-Backed Lending App is a compact production product for digital-asset holders borrowing against collateral. The experience is intentionally narrow: users onboard borrowers, track collateral ratios, present repayment schedules, and surface real-time loan health. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Full-stack fintech engineer - Year: 2026 - Duration: 14 weeks - Technologies: React Native, TypeScript, Node.js, PostgreSQL, AWS - Client: Keira, Sunday Office, United States - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://surge.credit ## Travel Discovery & Booking App > E-commerce & Payments. A production-ready travel discovery & booking app designed for independent travelers exploring local experiences, with a focused workflow, polished UI and a backend built for real usage. Travel Discovery & Booking App is a compact production product for independent travelers exploring local experiences. The experience is intentionally narrow: users discover places, save itineraries, browse local experiences, and move from inspiration into booking. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should focus on trust and transaction design: how users understand price, availability and next steps, and how the backend prevents duplicate or inconsistent transaction state. - Role: Product & mobile developer - Year: 2022 - Duration: 12 weeks - Technologies: React Native, Node.js, Next.js, PostgreSQL - Client: Jonah, Lantern Row, United States - Client rating: 5 out of 5 - Client review: "The purchase flow feels trustworthy from discovery through confirmation. Prices, status and next steps are clear, which made the whole experience easier for our customers." - Live: https://dexnine.com/work/yourpal ## Private Weekly Video Social App > Web Applications. A production-ready private weekly video social app designed for small friend groups who want meaningful asynchronous updates, with a focused workflow, polished UI and a backend built for real usage. Private Weekly Video Social App is a compact production product for small friend groups who want meaningful asynchronous updates. The experience is intentionally narrow: users create private groups, record a weekly video update, watch friends' updates, and respond without an endless feed. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Product engineer - Year: 2022 - Duration: 11 weeks - Technologies: Next.js, React Native, Expo, Supabase, Clerk, TypeScript - Client: Lucia, Kindred Lane, Italy - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://arne.ai/projects/wafflr ## Personal Health Record Web App > Web Applications. A production-ready personal health record web app designed for people organizing medication, providers and medical history, with a focused workflow, polished UI and a backend built for real usage. Personal Health Record Web App is a compact production product for people organizing medication, providers and medical history. The experience is intentionally narrow: users build a private health profile, update medication records, store provider details, and prepare a concise emergency summary. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Full-stack web developer - Year: 2021 - Duration: 10 weeks - Technologies: Next.js, TypeScript, PostgreSQL, Supabase, PWA, Vercel - Client: Calvin, Birch & Beam, Netherlands - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://syncara.ca/ ## Senior Digital Skills Companion > Web Applications. A production-ready senior digital skills companion designed for older adults learning everyday technology with family support, with a focused workflow, polished UI and a backend built for real usage. Senior Digital Skills Companion is a compact production product for older adults learning everyday technology with family support. The experience is intentionally narrow: users follow guided lessons, save tutorials, ask for help, and share progress with trusted family members. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Frontend & accessibility engineer - Year: 2025 - Duration: 9 weeks - Technologies: Next.js, TypeScript, Supabase, PostgreSQL, PWA - Client: Esme, Southbank Works, Mexico - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://firefly26.framer.media/ ## Quest-Based Local Discovery App > Web Applications. A production-ready quest-based local discovery app designed for travelers and locals discovering places through lightweight challenges, with a focused workflow, polished UI and a backend built for real usage. Quest-Based Local Discovery App is a compact production product for travelers and locals discovering places through lightweight challenges. The experience is intentionally narrow: users browse nearby quests, open map-based clues, complete activities, and collect progress across a city. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Full-stack web developer - Year: 2023 - Duration: 12 weeks - Technologies: React, TypeScript, Node.js, PostgreSQL, Mapbox, PWA, Push Notifications - Client: Ronan, Olive Grid, Portugal - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://in.linkedin.com/company/explorelyapp ## Campus Events Discovery Platform > Web Applications. A production-ready campus events discovery platform designed for students and campus clubs sharing events in one place, with a focused workflow, polished UI and a backend built for real usage. Campus Events Discovery Platform is a compact production product for students and campus clubs sharing events in one place. The experience is intentionally narrow: users browse a personalized event feed, follow interests, let clubs publish events, and send weekly digests. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Solo full-stack developer - Year: 2022 - Duration: 8 weeks - Technologies: Next.js, TypeScript, Supabase, PostgreSQL, Resend, Tailwind CSS - Client: Leila, Rainbird Studio, Germany - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://arhamaqeel.vercel.app/projects/lynx ## Citizenship Test Prep Web App > Web Applications. A production-ready citizenship test prep web app designed for learners preparing for a fixed-syllabus citizenship exam, with a focused workflow, polished UI and a backend built for real usage. Citizenship Test Prep Web App is a compact production product for learners preparing for a fixed-syllabus citizenship exam. The experience is intentionally narrow: users study structured content, run mock exams, review weak areas, use flashcards, and ask an AI tutor for explanations. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Solo SaaS developer - Year: 2021 - Duration: 12 weeks - Technologies: Next.js, React, TypeScript, Radix UI, PostgreSQL, Vercel - Client: Oscar, Daymark Co., Argentina - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://lifetest.co.uk/ ## Community Savings Web App > Web Applications. A production-ready community savings web app designed for small trusted groups managing rotating savings together, with a focused workflow, polished UI and a backend built for real usage. Community Savings Web App is a compact production product for small trusted groups managing rotating savings together. The experience is intentionally narrow: users create a savings circle, schedule contributions, confirm payments, track upcoming turns, and view group history. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Product designer & developer - Year: 2020 - Duration: 12 weeks - Technologies: Next.js, TypeScript, Node.js, PostgreSQL, PWA - Client: Anika, Soft Peak, Colombia - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://olafemi.com/ ## Social Walking Community > Web Applications. A production-ready social walking community designed for people who want a lightweight social reason to walk regularly, with a focused workflow, polished UI and a backend built for real usage. Social Walking Community is a compact production product for people who want a lightweight social reason to walk regularly. The experience is intentionally narrow: users discover walks, join or create local sessions, track participation, and stay connected without a noisy social feed. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight responsive product design, information hierarchy and the engineering behind a web experience that remains fast and clear across real network and device conditions. - Role: Full-stack product developer - Year: 2017 - Duration: 11 weeks - Technologies: Next.js, React Native, TypeScript, Supabase - Client: Jamie, Cloverline, Japan - Client rating: 5 out of 5 - Client review: "The experience is clean, responsive and easy to understand on the first visit. It gave us a product that feels much more mature than its footprint suggests." - Live: https://www.walkwithme.fit/ ## Couples Habit & Journal App > Mobile Applications. A production-ready couples habit & journal app designed for couples building small shared routines and reflection habits, with a focused workflow, polished UI and a backend built for real usage. Couples Habit & Journal App is a compact production product for couples building small shared routines and reflection habits. The experience is intentionally narrow: users complete daily check-ins, track shared streaks, write short reflections, and see a partner's progress. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Solo mobile developer - Year: 2021 - Duration: 10 weeks - Technologies: React Native, Expo, TypeScript, Supabase, PostgreSQL, Offline Sync - Client: Sylvie, Paper Kite, Norway - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://beseen.love/ ## AI Landmark Travel Guide > Mobile Applications. A production-ready ai landmark travel guide designed for travelers who want instant context about places around them, with a focused workflow, polished UI and a backend built for real usage. AI Landmark Travel Guide is a compact production product for travelers who want instant context about places around them. The experience is intentionally narrow: users scan a landmark, receive an explanation, play an audio guide, save places, and plan nearby stops. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Founder & mobile developer - Year: 2023 - Duration: 14 weeks - Technologies: React Native, Expo, TypeScript, Supabase, PostgreSQL, RevenueCat - Client: Nathan, North Coast Lab, Mexico - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://www.carlosbalaguer.com/ ## Social Habit Challenge App > Mobile Applications. A production-ready social habit challenge app designed for friends who want accountability around personal habits, with a focused workflow, polished UI and a backend built for real usage. Social Habit Challenge App is a compact production product for friends who want accountability around personal habits. The experience is intentionally narrow: users create a habit, attach a goal, share progress, join duo challenges, and encourage friends. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Mobile product developer - Year: 2021 - Duration: 10 weeks - Technologies: React Native, Expo, TypeScript, Firebase, Push Notifications - Client: Yara, Violet Yard, Colombia - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://www.linkedin.com/company/fridgeapp ## Consumer Finance Installment App > Mobile Applications. A production-ready consumer finance installment app designed for consumers comparing and managing short-term payment options, with a focused workflow, polished UI and a backend built for real usage. Consumer Finance Installment App is a compact production product for consumers comparing and managing short-term payment options. The experience is intentionally narrow: users onboard securely, check eligibility, review transparent installment terms, accept an offer, and track repayments. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Mobile fintech developer - Year: 2024 - Duration: 12 weeks - Technologies: Flutter, Dart, Node.js, PostgreSQL, Firebase - Client: Cole, Signal Grove, Japan - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://www.linkedin.com/posts/mohamed-mohamed-87327b171_qistiq-fintech-consumerfinance-activity-7494074447688036352-raQG ## Friend Accountability Habit App > Mobile Applications. A production-ready friend accountability habit app designed for small friend groups maintaining fitness or reading commitments, with a focused workflow, polished UI and a backend built for real usage. Friend Accountability Habit App is a compact production product for small friend groups maintaining fitness or reading commitments. The experience is intentionally narrow: users create a habit challenge, submit proof, receive friend notifications, and compare a lightweight leaderboard. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: iOS developer - Year: 2018 - Duration: 9 weeks - Technologies: SwiftUI, Swift, Firebase, Push Notifications - Client: Mira, Moss & Metric, Brazil - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://habitbuddy.co/ ## Social Fitness Matching App > Mobile Applications. A production-ready social fitness matching app designed for active people looking for nearby fitness partners and friendly competition, with a focused workflow, polished UI and a backend built for real usage. Social Fitness Matching App is a compact production product for active people looking for nearby fitness partners and friendly competition. The experience is intentionally narrow: users sync activity, join challenges, view leaderboards, and connect with people who share similar routines. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Mobile app developer - Year: 2019 - Duration: 12 weeks - Technologies: React Native, TypeScript, Firebase - Client: Simon, Arc & Alder, United States - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://in.linkedin.com/in/utsavkumar14 ## Recovery & Discipline Tracker > Mobile Applications. A production-ready recovery & discipline tracker designed for people working on private behavior-change goals, with a focused workflow, polished UI and a backend built for real usage. Recovery & Discipline Tracker is a compact production product for people working on private behavior-change goals. The experience is intentionally narrow: users log urges, choose a coping action, run emergency exercises, and review streaks and trigger analytics. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Mobile product engineer - Year: 2018 - Duration: 10 weeks - Technologies: React Native, Expo, TypeScript, Supabase, Push Notifications, RevenueCat - Client: Daphne, Stillwater Co., Finland - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://www.rewireapp.co.uk/ ## Fitness Tracking App > Mobile Applications. A production-ready fitness tracking app designed for gym users who want workouts and nutrition in one consistent experience, with a focused workflow, polished UI and a backend built for real usage. Fitness Tracking App is a compact production product for gym users who want workouts and nutrition in one consistent experience. The experience is intentionally narrow: users log meals, scan food, record sets and reps, monitor progress, and review personalized fitness summaries. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should highlight native interaction quality, offline/background behavior, notifications and the small UX details that make repeated daily use feel effortless. - Role: Cross-platform mobile developer - Year: 2021 - Duration: 12 weeks - Technologies: Flutter, Dart, Firebase - Client: Ben, Golden Hour Studio, Portugal - Client rating: 5 out of 5 - Client review: "The app feels intentionally designed for mobile instead of being a website squeezed onto a phone. The everyday flow is quick and the small interaction details are excellent." - Live: https://www.aurax.fit/ ## Conference App Delivery Pipeline > Cloud, DevOps & Infrastructure. A production-ready conference app delivery pipeline designed for event organizers needing reliable releases around a fixed conference date, with a focused workflow, polished UI and a backend built for real usage. Conference App Delivery Pipeline is a compact production product for event organizers needing reliable releases around a fixed conference date. The experience is intentionally narrow: users ship a cross-platform event app with schedules and live updates using repeatable CI/CD, monitored backend services, and fast content deployment. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Full-stack & DevOps engineer - Year: 2024 - Duration: 8 weeks - Technologies: React, Capacitor, Firebase, GitHub Actions, Sentry - Client: Clara, Meadow Labs, Brazil - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://ojaswa.dev/ ## Hostel Laundry PWA Infrastructure > Cloud, DevOps & Infrastructure. A production-ready hostel laundry pwa infrastructure designed for student housing operations replacing paper laundry slips, with a focused workflow, polished UI and a backend built for real usage. Hostel Laundry PWA Infrastructure is a compact production product for student housing operations replacing paper laundry slips. The experience is intentionally narrow: users run a production PWA with order tracking, push notifications, admin workflows, rate limits, containerized deployment, and audit-friendly logs. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Full-stack & DevOps developer - Year: 2026 - Duration: 8 weeks - Technologies: Node.js, Express, MongoDB, PWA, Docker, Nginx, Push Notifications - Client: Mateo, Openlane, Brazil - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://ayushmaanyadav.me/ ## Habit App Production Platform > Cloud, DevOps & Infrastructure. A production-ready habit app production platform designed for a consumer mobile product needing reliable AI, notifications and cross-platform releases, with a focused workflow, polished UI and a backend built for real usage. Habit App Production Platform is a compact production product for a consumer mobile product needing reliable AI, notifications and cross-platform releases. The experience is intentionally narrow: users operate mobile, backend, AI and email services with staged deployments, secrets management, background jobs, and usage observability. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Founder & platform engineer - Year: 2025 - Duration: 12 weeks - Technologies: Flutter, Node.js, Firebase, Railway, Google Gemini, OpenAI, Resend - Client: Isla, First Light Co., Germany - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://www.linkedin.com/in/pauledemekong ## Cloud-Native Resume SaaS > Cloud, DevOps & Infrastructure. A production-ready cloud-native resume saas designed for a small AI SaaS balancing generated content, billing and predictable deployments, with a focused workflow, polished UI and a backend built for real usage. Cloud-Native Resume SaaS is a compact production product for a small AI SaaS balancing generated content, billing and predictable deployments. The experience is intentionally narrow: users run frontend, APIs, AI jobs and billing through repeatable CI/CD with production logging, rollback-friendly releases, and protected secrets. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Cloud & full-stack engineer - Year: 2023 - Duration: 11 weeks - Technologies: Node.js, TypeScript, PostgreSQL, MongoDB, Stripe, OpenAI, DigitalOcean - Client: Julian, Quiet Harbor, Germany - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://saranya-madala.com/ ## Health Community Cloud Platform > Cloud, DevOps & Infrastructure. A production-ready health community cloud platform designed for a moderated peer-support product requiring privacy, uptime and careful content operations, with a focused workflow, polished UI and a backend built for real usage. Health Community Cloud Platform is a compact production product for a moderated peer-support product requiring privacy, uptime and careful content operations. The experience is intentionally narrow: users host authenticated communities, topic feeds and moderation workflows with monitored services, backups, secure media storage, and controlled releases. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Cloud application engineer - Year: 2025 - Duration: 12 weeks - Technologies: React Native, Node.js, PostgreSQL, Docker - Client: Freya, Avenue North, United States - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://mwm.ai/apps/diabetes-canada-connect/6747996072 ## Private Voice App Release Pipeline > Cloud, DevOps & Infrastructure. A production-ready private voice app release pipeline designed for a native desktop product that processes speech locally and must ship safely outside a browser, with a focused workflow, polished UI and a backend built for real Private Voice App Release Pipeline is a compact production product for a native desktop product that processes speech locally and must ship safely outside a browser. The experience is intentionally narrow: users package and sign native builds, manage update channels, collect privacy-safe crash data, and automate releases while keeping inference on-device. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: macOS & release engineer - Year: 2023 - Duration: 10 weeks - Technologies: Swift, SwiftUI, GitHub Actions - Client: Eva, Larkspur Works, Spain - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://github.com/Jarus77/ ## Live Sports App Infrastructure > Cloud, DevOps & Infrastructure. A production-ready live sports app infrastructure designed for small tournament organizers streaming scores, polls and live content to a few hundred concurrent users, with a focused workflow, polished UI and a backend built for Live Sports App Infrastructure is a compact production product for small tournament organizers streaming scores, polls and live content to a few hundred concurrent users. The experience is intentionally narrow: users deploy APIs and web clients with caching, WebSockets, rate limits, container builds, zero-downtime releases, and proactive error monitoring. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Full-stack & DevOps engineer - Year: 2021 - Duration: 9 weeks - Technologies: Next.js, FastAPI, Redis, WebSockets, Docker, GitHub Actions, Sentry - Client: Camille, Blue Oak Studio, France - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://in.linkedin.com/in/vivekkushalch ## Native App Release & Content Pipeline > Cloud, DevOps & Infrastructure. A production-ready native app release & content pipeline designed for a lightweight native app delivering curated daily content with privacy-first analytics, with a focused workflow, polished UI and a backend built for real usag Native App Release & Content Pipeline is a compact production product for a lightweight native app delivering curated daily content with privacy-first analytics. The experience is intentionally narrow: users ship signed native releases, refresh remote content safely, manage feature flags, and monitor crashes without invasive tracking. The interface prioritizes clarity, fast feedback and a strong first-use experience rather than feature volume. The case study should tell the production story: repeatable deployments, secrets, monitoring, rollback, cost-conscious infrastructure and the operational choices that keep a small product dependable. - Role: Native app & release engineer - Year: 2025 - Duration: 7 weeks - Technologies: Swift, GitHub Actions - Client: Dario, Cairn & Co., Brazil - Client rating: 5 out of 5 - Client review: "Releases became predictable and production issues became much easier to diagnose. We can ship changes with confidence without adding a heavy operations burden." - Live: https://apps.apple.com/us/app/passport-beautiful-new-tab/id1615350085 # Skills of Jakub Kowalski > Technologies used by published projects, grouped by discipline. The percentage is professional capability, where 100% is senior-level production experience. ## AI & Automation AI agents, LLM workflows, retrieval and automation connected to business tools. OpenAI (85%, advanced), Google Gemini (70%, strong) ## Languages The languages the delivered systems are written in. TypeScript (95%, expert), Swift (80%, advanced), Dart (70%, strong), Go (60%, strong), Kotlin (60%, strong), Python (60%, strong), Rust (60%, strong) ## Frontend Interfaces, design systems and the rendering and build tooling behind them. Next.js (95%, expert), React (85%, advanced), PWA (80%, advanced), Tailwind CSS (70%, strong), Nuxt (60%, strong), Radix UI (60%, strong), Vue.js (60%, strong) ## Backend & APIs Services, APIs, messaging and authentication. Node.js (90%, expert), FastAPI (80%, advanced), Express (75%, advanced), Resend (75%, advanced), NestJS (70%, strong), WebSockets (70%, strong), Google Calendar (65%, strong), Google Maps (65%, strong), OAuth 2.0 (65%, strong), REST (65%, strong), Spring Boot (65%, strong), .NET (60%, strong), Clerk (60%, strong), JWT (60%, strong), Mapbox (60%, strong), WebRTC (60%, strong) ## Databases & Data Relational and document stores, caches, vector search and data access. PostgreSQL (95%, expert), Supabase (90%, expert), Firebase (85%, advanced), Redis (80%, advanced), MongoDB (80%, advanced), Prisma (65%, strong), Drizzle (60%, strong) ## Mobile Cross-platform and native mobile applications. React Native (90%, expert), Expo (85%, advanced), Push Notifications (80%, advanced), SwiftUI (75%, advanced), Flutter (75%, advanced), Android (60%, strong), Capacitor (60%, strong), Offline Sync (60%, strong) ## Cloud & DevOps Hosting, containers, infrastructure as code and delivery pipelines. AWS (85%, advanced), Docker (85%, advanced), Vercel (80%, advanced), GitHub Actions (75%, advanced), Cloudinary (70%, strong), Railway (65%, strong), AWS CloudFront (60%, strong), Azure Functions (60%, strong), DigitalOcean (60%, strong), Netlify (60%, strong), Nginx (60%, strong), Terraform (60%, strong) ## E-commerce & Payments Storefronts, checkout and payment providers. Stripe (75%, advanced), RevenueCat (65%, strong), Paystack (60%, strong) ## Testing & Observability Automated testing, monitoring and error tracking. Sentry (65%, strong) # Frequently asked questions about Jakub Kowalski ## Who is Jakub Kowalski? Jakub Kowalski is a Polish software professional focused on AI agents and automation, CRM and ERP systems, SaaS products, APIs and backend engineering, web and mobile applications, e-commerce, and production infrastructure. ## What kinds of projects do you work on? Software where the workflow matters as much as the interface: AI agents and automation, business systems such as CRM and ERP, SaaS products, APIs and backend services, web and mobile applications, commerce and payments, and the infrastructure that runs them. ## Do you build AI agents and automation? Yes. That includes tool-using AI agents, LLM-powered workflows, retrieval-augmented generation over your own data, and automations that connect to the business tools you already use, with review steps where decisions need a person. ## Can you work with existing CRM or ERP systems? Yes. Work can extend or customize an existing CRM or ERP, integrate it with other platforms, automate the workflows around it, or build a custom business system where off-the-shelf software does not fit. ## Do you build complete SaaS products? Yes — from the data model and multi-tenant backend to authentication, subscription billing, customer-facing dashboards and internal administration. ## Do you develop APIs and backend systems? Yes. That covers API design and documentation, authentication and authorization, third-party integrations, event-driven and background processing, and databases designed to grow with the product. ## Do you build web and mobile applications? Yes. Web work ranges from dashboards and portals to interactive customer-facing applications; mobile work covers cross-platform and native apps with synchronization, notifications and offline-capable features. ## Do you work with e-commerce platforms and payments? Yes. That includes storefronts on commerce platforms or headless setups, checkout and subscription flows, payment provider integrations, marketplaces and order-processing workflows. ## Can you handle deployment and DevOps? Yes. Applications can be containerized, deployed through automated CI/CD pipelines, described as infrastructure as code, and monitored in production on cloud or self-hosted infrastructure. ## Can you integrate with an existing system? Yes. Most projects connect to something that already exists — a CRM, an ERP, a payment provider, an internal database or a third-party API. Integrations start from how that system works today and what needs to change.