Freelance Senior Mobile App Developer
Hi, I'm Lucian
Senior React Native developer with 10+ years building high-performance iOS and Android apps. Specializing in native module engineering, platform integrations, and complex cross-platform architectures. Available for freelance and contract work.
About Me
I'm a Senior React Native Tech Lead based in Romania with over a decade of experience in mobile development. I specialize in building enterprise-grade streaming applications with complex video player integrations, DRM security, and native module engineering.
My expertise spans the full mobile spectrum — from React Native cross-platform development to native iOS (Swift, Objective-C) and Android (Kotlin, Java) engineering. I've led teams delivering solutions in streaming, healthcare, IoT, and fintech.
10+
Years Experience
6+
Companies
3
Platforms
MSc
in IT
What I Do
React Native Apps
Cross-platform mobile applications built with React Native, delivering native performance on both iOS and Android from a single codebase.
Native Modules
Custom native modules bridging React Native with platform-specific APIs. Deep integration with iOS and Android SDKs for features like video processing, analytics, and hardware access.
Video Streaming & DRM
End-to-end streaming solutions with HLS/DASH playback, DRM integration (Widevine, FairPlay), ad insertion, and performance optimization for various network conditions.
Consulting
Technical leadership and architecture consulting for mobile projects. Code reviews, performance audits, and strategic guidance for scaling your mobile team and product.
My Experience
2021 — Present
React Native Tech Lead
3SS — Cluj-Napoca, Romania
- Lead development team building cross-platform streaming app for iOS and Android
- Architect and implement video player with DRM integration
- Develop native modules for video processing, analytics, and ad insertion
- Optimize app performance and streaming quality for various network conditions
- Develop and maintain React JS web applications alongside mobile platforms
2021
React Native Senior Developer
Thoughtworks — Cluj-Napoca, Romania
- Developed IoT mobile application with React Native
- Built native modules for device communication (Android, iOS)
- Collaborated with cross-functional teams in agile environment
2020 — 2021
React Native Developer
Softvision-Cognizant — Cluj-Napoca, Romania
- Built medical application for US healthcare client
- Implemented app security and secure notification systems
- Developed native modules for Android and iOS
2016 — 2019
Mobile Developer
Greppy Systems & Kalos Information Systems — Romania
- Postal and loyalty/payment card applications
- iOS development with XMPP protocol
- Android Java XMPP client library maintenance
Technical Skills
Core Technologies
Streaming & Media
Mobile Development
Libraries & Tools
Get In Touch
Have a project in mind or need a mobile development expert? I'd love to hear from you.