• Developed a tour booking mobile application for both Android and iOS platforms using React Native.• Designed and developed RESTful APIs with Firebase Cloud Functions, ensuring integration of various components and third-party services within the mobile application.• Managed and integrated Firebase for database management, cloud firestore and user authentication processes.• PayTR Payment Integration: Integrated the PayTR payment system into the mobile application, enabling secure and fast payment transactions.• NetGSM OTP SMS Integration: Implemented OTP (One Time Password) SMS verification via NetGSM to verify user identity.•UI/UX Design Principles: Improved the user experience by designing user-friendly and aesthetically pleasing interfaces.

• Maintained and improved a mobile app for local ISP dealers and field teams, providing over 20 services. Fixed bugs and added features to enhance app stability and response time.• Developed and published an online transactions application with React Native for customers.• Collaborated with engineers, designers, field teams and dealers to ensure project success.