React & React Native Developer at ApplyChance

Developed and maintained web-based admin dashboards focusing on front-end functionality to support KPIs and reporting tools. Collaborated with marketing and stakeholders to design features improving user and support activity visibility. Implemented user retention, email marketing deliverability, bounce tracking, and user growth KPIs. Built real-time chat interface with WebSocket and SignalR integrating delivery receipts and typing indicators. Created CRUD operations for user management, behavior tracking with Google Analytics, and payment reporting with Square. Optimized performance with lazy loading, caching, memoization, and implemented unit/integration testing with Jest and React Testing Library. Contributed to CI/CD pipelines for streamlined deployment.

React Native Developer at Payam Negar Lyan (Panco)

Integrated real-time communication features using WebRTC for audio and video calls, developed chat system enhancing file, image, video, and voice messaging capabilities. Integrated Firebase Cloud Messaging to improve notifications and user engagement by 10%. Built live conferencing feature allowing multiple simultaneous users using OpenVidu library. Improved app performance via React Native Reanimated refactoring. Developed web-based games integrated into app via WebView, implemented SQLite offline client-side database, RESTful API integration, and collaborated on API design. Maintained unit tests with Jest and React Native Testing Library. Streamlined CI/CD with App Center CodePush and managed app submissions on Google Play and App Store. Delivered scalable front-end features with Redux, Redux-Saga, Google Maps API, and OTP integrations.