Razvan Lung
Freelance at Upwork
Romania
Summary
🤩
Rockstar🎓
Top SchoolRazvan Lung is a seasoned freelance software engineer from Romania with 11 years of experience specializing in Dart and Flutter mobile and cross-platform development. He built a production-grade Dart Firestore SDK using gRPC and Protocol Buffers and created C++ to Dart SQLite bindings, demonstrating deep systems-level and cross-language integration skills. Razvan also authored a comprehensive MapBox Flutter plugin that unified divergent native APIs into a clean, reactive SDK and shipped numerous example apps to accelerate adoption. His open-source contributions include cross-platform enhancements to widely used Flutter plugins (location, permissions) and platform interface implementations for web and macOS. Beyond coding, he mentors Flutter developers and organizes local Google Developer Group events, blending community leadership with hands-on engineering. He stands out for turning native performance techniques into accessible, multi-platform developer tooling.
10 years of coding experience
2 years of employment as a software developer
Asistent Medical Generalist, Asistență medicală / Asistent medical, Asistent Medical Generalist, Asistență medicală / Asistent medical at Grupul Școlar Vasile Voiculesu
Romanian, English
Stackoverflow
5,871reputation
420kreached
25answers
48questions
flutter
top-1%
dart
top-1%
height
top-1%
Github Skills (26)
ios10
flutter-plugin10
height10
flutter-apps10
permission10
ui-design10
java10
javas10
android10
flutter-game10
dart10
flutter10
page-layout9
layout9
android-sdk9
Programming languages (16)
Github contributions (5)
long1eu/SpaceTabLayout
Oct 2016 - Mar 2018
Not actively maintained, but PR are welcomed
Role in this project:
Mobile Developer
Mobile DeveloperContributions:2 releases, 32 commits, 1 PR in 1 year 5 months
Contributions summary:Razvan primarily contributed to the UI of the Android application, focusing on implementing a custom tab layout with a floating action button for navigation. Their work involved modifying the UI layout, including attributes and layout elements. The user added functionality for tab navigation, including animation and custom icons. They are also using Java, and they're modifying existing components to enhance the user experience.
actively-maintainednot-actively-maintained
Lyokone/flutterlocation
Mar 2020 - Mar 2020
A Flutter plugin to easily handle realtime location in iOS and Android. Provides settings for optimizing performance or battery.
Role in this project:Mobile Developer (Android/iOS)
Mobile Developer (Android/iOS)Contributions:11 commits, 1 PR, 8 comments in 2 days
Contributions summary:Razvan implemented a platform interface and its implementation for location services, including testing and the `MethodChannelLocation` class. They added web and macOS implementations for cross-platform compatibility, ensuring the plugin functions on different platforms. The user also addressed PR requests and fixed minor issues.
realtimebatterydartrealtime-locationandroid
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