I'm a full-stack web & mobile developer with a strong focus on scalable, production-ready applications. My tech stack revolves around TypeScript, React, Next.js, React Native (Expo), tRPC, and MongoDB, with additional experience in Docker, AWS, and CI/CD automation using GitHub Actions.
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SprawdzPrawko.app – A web and mobile app for verifying a driver's license and professional qualifications. Built with React Native and Next.js, designed for scalability and usability.
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ADRTesty.pl – A progressive web application for preparing for ADR exams. Includes a full test system, question parser, and analytics dashboard – developed as a complete educational solution for professional drivers.
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GoFleet Driver – A cross-platform mobile app (iOS & Android) built with React Native + Expo for drivers working with GoFleet on platforms like Bolt, Uber, and FREE NOW. Centralizes driver operations: collaboration info, contact with support, ride guidelines, document notifications, and account status — all in one place, paperless and remote.
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SignupShield.dev – An API-first fraud prevention service that stops fake registrations in milliseconds. Detects disposable emails, risky domains, datacenter IPs, Tor exit nodes, and proxy traffic — returning a single 0–100 risk score per request. Deployed on Edge across 18 regions with p95 under 300ms. Used by 4.2k+ developers to score 14M+ signups.
- Frontend: React, Next.js, React Native, TypeScript, Chakra UI, Tailwind
- Backend: Express.js, tRPC, Node.js, MongoDB
- DevOps: Docker, AWS (S3, Lambda), GitHub Actions, Husky, Jest
- Mobile: React Native, Expo Router, cross-platform design patterns
- Automation: CI/CD pipelines, type-safe APIs, full-stack type inference
I actively contribute to Open Source projects and continuously improve my skills through real-world challenges. With 2000+ hours tracked on WakaTime, I combine discipline with curiosity — always exploring the next tool or pattern that can improve the developer experience or user performance.
To build modern, efficient, and elegant software — whether it's for logistics, education, or internal business platforms. I specialize in turning product ideas into functional, well-tested apps with a clean developer experience and robust infrastructure.
Languages & Tools:
Let’s connect, collaborate, and build innovative tech solutions together!
