Mücahid KOÇ

Integrated OpenAI API based AI features via a RevenueCat managed premium subscription system in React Native, boosting user engagement and monetization. Fixed critical Firebase Crashlytics flagged crashes in video recording and navigation flows, cutting crash rate by 20% and reaching 99.5% crash-free sessions.

Built and maintained frontend features for nexpr.net and isbirligiyap.com using React, integrating backend APIs and dynamic data flows to support real-time platform operations. Increased application responsiveness by optimizing data-fetching with React Query and improving build performance.

Developed mobile and frontend solutions for multiple clients, including a QR-based loyalty app for a German bakery chain, frontend features for web platforms, and AI features in a mobile app.

Contributed to a QR-based customer loyalty solution built with React Native for one of Germany's top five bakery chains, enabling digital discount and campaign management to improve customer retention and support branch revenue growth.

Improved screen transition performance on Teknosa's high-traffic mobile platform serving millions of users by optimizing payload processing and integrating new RESTful APIs, contributing to a 3% increase in monthly active user engagement. Implemented Redux for global state management, ensured cross-platform stability, and translated Figma designs into production-ready components.

Assisted in the design and optimization of user control systems to improve app performance. Resolved codebase bugs, directly contributing to enhanced system stability and reliability.

Graduated in 2023 with a degree in Computer Engineering.

Completed a React / React Native certification program.

Completed a Frontend Developer certification program.