Flutter Developer with 3+ years of experience and a strong product mindset. Expert in full lifecycle development from architecture to App Store launch, skilled in CI/CD automation, API testing, ensuring app stability and optimalization.
Currently working as Flutter Developer & Product Engineer at Epic Plays, where I'm pushing the boundaries of mobile development and delivering business value through clean, scalable code.
🎓 Education Andrzej Frycz Modrzewski Krakow University (2021-2025) Computer Science and Econometrics • GPA: 4.5/5.0 Thesis: "The use of unit tests in the development process of mobile applications using Flutter"
Epic Plays | Oct 2024 – Present | Remote, New York
- Developing a high-performance mobile application using Flutter & Dart with complex real-time features (video feed, chat, notifications, in-app payments)
- QA Leadership: Defined the QA strategy, created test plans, and implemented automated testing (Unit, Widget, Integration) to prevent regressions
- DevOps: Configured robust CI/CD pipelines (Codemagic) for automated building, testing, and deployment to Google Play & App Store
- Stack: Flutter, Supabase, Firebase Auth/Functions, REST API, Postman
360 Software House | Dec 2023 – Oct 2024 | Remote
- Project Lead: Led the technical development of the "Believers App", ensuring adherence to Clean Architecture and SOLID principles
- Testing & Stability: Conducted deep performance profiling and wrote comprehensive test suites, resulting in a stable release with minimal production bugs
- Mentorship: Set coding standards and best practices for the mobile domain, focusing on maintainability and scalability
Freelance Flutter Developer 2021 - Present | Self-employed
Custom mobile applications. Full-stack development from design to deployment. High code quality standards.
| Area | Achievement |
|---|---|
| App Optimization & Performance | Maximized performance: optimized UI rendering, minimized memory usage, and accelerated app launch time |
| Testing Strategy | Unit, Widget, Integration Tests with Shift-Left approach |
| CI/CD | Automated build pipelines with Codemagic, Fastlane |
| Architecture | Clean Architecture, SOLID principles, BLoC/Riverpod |
| Full Lifecycle | From architecture to App Store/Play Store deployment |
| Tools | Git, Jira, Figma, Sentry, Firebase App Distribution, App Store Connect, Google Play Console |
| QA Expertise | Deep knowledge in performance optimization & root cause analysis |
| Backend Integration | Firebase (Auth, Cloud Functions), Supabase, REST API, GraphQL, Postman |
| Platform | Link |
|---|---|
| dev.kacpermajcher@gmail.com | |
| linkedin.com/in/kacpermajcher | |
| 💻 GitHub | github.com/KacperMajcher |
| 📍 Location | Krakow, Poland |
Let's build something great together.
