Senior Software Engineer with 20+ years of experience in mobile, web, and systems development. M.Sc. in Computer Science from Eötvös Loránd University. Currently serving as a maintainer of @rnmapbox/maps, one of the most popular mapping libraries for React Native.
Mobile Developer (Aug 2024 - Aug 2025)
Working on Zabit mobile app - A cutting-edge mobile application built with Expo and React Native, featuring a Supabase backend for robust data management and scalable infrastructure.
- Vice President at Morgan Stanley - C++ developer working on proprietary middleware server for distributing market data (low latency/high throughput publish-subscribe system)
- Senior Software Engineer at various technology companies
- iOS Development experience with Objective-C/Swift
- Backend & Systems development with NodeJS/TypeScript (supabase), Ruby/Rails, Python
- Architecture & Infrastructure design for large-scale applications
- Cross-platform Development across mobile and desktop platforms
- Expert: C++, Framework Design, Large Projects, Legacy Code
- Advanced: Ruby/Rails, Python, TCP/IP Programming, React Native
- Intermediate: Objective-C/iOS, Java, JavaScript/HTML/CSS, Expo
- Specialized: Multi-platform Development, Supabase
- Infrastructure: CI/CD, Build Systems, Unit Testing, Git
- @rnmapbox/maps Maintainer: Leading React Native mapping solutions
- React Native Core: Multiple merged PRs including Swift Package Manager support, Android autolinking fixes, codegen improvements, and double-checked locking issue reproduction
- React Native Ecosystem: Bug reproductions, feature implementations, and community contributions (bug reports & PRs)
- Expo Contributions: Bug reproductions and improvements including race condition fix in expo updates and permission request dialog crash fix
- Net-ssh Maintainer: Ruby SSH library with multiple contributions
- Rails: Core contributor with bugfixes and pull requests
- Other contributions: Google C++ Testing Framework, Selenium/WebDriver, Apple's GDB, Mesa3D
M.Sc., Computer Science - Eötvös Loránd University of Sciences (1995-2000)
- Portfolio: mfazekas.szemafor.com
- Open to collaboration on React Native, iOS, systems development projects, and @rnmapbox/maps
- Feel free to reach out for project discussions or contributions
Passionate about building robust, scalable solutions and contributing to the open-source community.