Hello, I'm Engin.
I build things for mobile.
I develop mobile applications and web services using React Native and Swift with a focus on creating user-centered solutions. My passion for technology drives me to continually learn and strive for improvement.
About Me
I'm a Mobile Developer specializing in React Native and iOS (Swift/SwiftUI) with 3+ years of professional experience. I have built scalable, production-ready apps for both startups and enterprises, with expertise in React Native, Swift, BLE integrations, and AR technologies (ARKit & RealityKit).
My background also includes .NET and Flutter, which gave me a solid foundation in cross-platform development and clean architecture.
Currently, I'm deepening my iOS expertise (SwiftUI, UIKit, and native modules) while continuing to deliver high-performance, user-centric mobile applications. Passionate about solving complex problems, I strive to craft smooth mobile experiences and grow as both a developer and architect.
Currently
Projects I Worked On
Some of the projects I've developed and contributed to
FreshDirect
MobileA modern mobile application built with React Native and Expo, focusing on infrastructure modernization and scalability. Features include custom native modules with Swift, iOS Live Activities integration, accessibility-first (a11y) development, and comprehensive codebase refactoring for enhanced stability and maintainability.
Param Mobile
MobileA comprehensive fintech mobile application built with React Native. Features include payment processing, account management, transaction history, and secure financial operations. Part of ParamTech's high-traffic mobile app ecosystem.
Kredim
MobileA mobile loan and credit application built with React Native. Features include loan applications, credit management, financial planning tools, and seamless integration with banking services.
Parampos
MobileA mobile payment and POS (Point of Sale) application built with React Native. Features include payment processing, transaction management, merchant services, and real-time payment tracking.
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Experience
React Native Developer
October 2025 - PresentFreshDirect
Istanbul, Turkey (Onsite)
At FreshDirect, I focus on modernizing and scaling the mobile application infrastructure using React Native and Expo, with a strong emphasis on native integration and inclusivity. Spearheading refactoring initiatives on the existing codebase to enhance system stability, modularity, and long-term maintainability. Developing custom native modules with Swift to bridge platform-specific capabilities, such as implementing iOS Live Activities within the Expo environment. Prioritizing an accessibility-first (a11y) development approach, ensuring the application is fully inclusive and compliant with universal design standards.
React Native Developer
June 2024 - September 2025ParamTech
Istanbul, Turkey (Hybrid)
At ParamTech, I actively contributed to the development of multiple React Native projects, delivering high-performance, scalable mobile applications for both iOS and Android platforms. Developed custom native modules for Android and iOS SDK integrations, enabling seamless React Native bridging and advanced platform-specific functionality. Collaborated closely with designers and backend teams to ensure smooth UI/UX flows and efficient API integrations. Led optimization efforts on critical screens by profiling rendering performance, minimizing re-renders, and improving app startup time. Built and maintained a shared component library used across multiple high-traffic apps, improving code reusability and design consistency.
Mobile Developer
September 2023 - June 2024MetaGrade Corp.
NewYork, USA (Remote)
During my tenure at Metagrade, I developed a React Native mobile application using tRPC, focusing on UI implementation, API integration, and performance optimization. I translated Figma designs into a functional interface, implemented Google and Coinbase authentication, and managed state efficiently using Redux. Additionally developed an Augmented Reality (AR) package with ARKit and integrated the Sketchfab API for enhanced 3D visualization. This role strengthened my expertise in React Native, AR development, authentication systems, and state management, while improving my ability to build scalable and high-performance applications.
Mobile Developer
January 2023 - June 2024PhD Teknoloji
Antalya, Turkey
During my tenure at PHD Teknoloji, I developed a mobile application using Flutter and built a web service with ASP.NET Core, ensuring seamless access to news content. To enhance data security and integrity, I created a C#-based database backup automation, ensuring reliable data transfers. This role strengthened my expertise in cross-platform mobile development, backend services, and database security, while improving my ability to design scalable and maintainable systems.
Education
Bachelor's Degree
2023 - PresentAnadolu University
Eskisehir, Turkey (Remote)
Associate Degree
2021 - 2023Akdeniz University
Antalya, Turkey
High School Diploma
2017 - 2021Halkalı Vocational Technical Anatolian High School
Istanbul, Turkey