Senior Mobile Engineer at Fibercodes

Delivered and scaled mobile applications for 500K+ users across iOS (Swift) and cross-platform (React Native). Built real-time features using WebSockets and integrated REST APIs/GraphQL for efficient data handling. Managed complex state using Redux Toolkit and React Query, improving data consistency and UI responsiveness. Implemented offline-first architecture for low-connectivity environments. Optimized performance using AVFoundation, Core Image, and Xcode Instruments, reducing crash rates by up to 75%. Designed secure systems with SSL pinning, Keychain, and robust authentication/payment integrations. Led CI/CD pipelines (Fastlane, GitHub Actions, Bitrise) to streamline testing and release cycles. Implemented unit/UI testing using XCTest, Jest, and Detox to improve reliability. Integrated Firebase (analytics, push notifications, crash reporting) and supported AWS-based services. Contributed to AI-driven features (speech-to-text, automation workflows) and mentored developers.

Mobile Developer (iOS/Android/React Native) at Contech Systems

Developed scalable mobile features contributing to approximately 30% user growth. Built reusable UI components and managed state using Redux Toolkit to improve maintainability. Improved API performance and reduced latency using optimized Retrofit, URLSession, and backend integrations. Worked with backend teams integrating PostgreSQL/MongoDB-based APIs for data handling. Increased test coverage using JUnit, XCTest, and Jest, reducing production issues. Resolved memory leaks and performance bottlenecks, improving app stability significantly. Implemented offline-first systems using Core Data and Room for reliable persistence. Collaborated with cross-functional teams in Agile environments for consistent delivery.