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Enhanced multi-purpose fintech application serving 500K+ active users, implementing 8 major features including Hotel Booking, Bill Payment, Cashback, and Receipt Scan using SwiftUI Modularized project architecture with Swift Package Manager, improving app performance by 20% and reducing build time by 30% Applied Protocol-Oriented Programming and MVVM design pattern with Firebase, Alamofire, and REST API Optimized CI/CD pipeline with Bitrise and conducted code reviews, lowering production bugs by 17%

Developed and released “Bilet Dukkani” travel booking app as lead iOS developer Introduced Wallet feature, accelerating ticket purchasing process by 35% Integrated and optimized Google Analytics for business intelligence and data-driven decisions Improved app review deployment times by 23% through efficient testing methodologies Enhanced app stability and performance by 11% using Firebase Crashlytics Implemented Clean Swift (VIP) architecture with RxSwift, Realm, and Moya

Architected and developed real-time messaging module using XMPP Protocol for fintech payment application Achieved 45% faster message loading time by implementing Realm database optimization Integrated financial features: money transfers, payment requests, family accounts, and shared payments Utilized advanced multithreading (GCD, Operations, async tasks) for optimal performance

Developed and published Idenfit HR management application from concept to App Store Implemented employee attendance, shift management, and leave tracking using Bluetooth, NFC, QR, and RF technologies Optimized performance with multithreading, GCD, and parallel queue management Applied MVVM design pattern with Moya, Firebase, GraphQL, and AVFoundation

Developed Motion Capture feature for AR application, recording 60M+ dance movements Integrated native iOS module with React Native main project using bridging techniques Utilized ARKit, RealityKit, and Motion Capture APIs for cutting-edge AR experiences

Developed modules for Turkish Airlines Cargo Portal (COMIS) and meal reporting applications Ensured compatibility across iPhone and iPad devices using adaptive layouts Optimized memory management and improved app performance by 21%

Enhanced payment processing application stability by 30% through MVC architecture implementation Added financial transaction features with focus on security and reliability Increased crash-free user rate from 86% to 99.8% according to Firebase Crashlytics

Contributed to social media and enterprise applications (Viatori, Fenerbahce SK, CocaCola One Team, Turkish Airlines Skylife) Developed messaging features using XMPP protocol with 55% faster message loading Utilized Objective-C, Swift, MVC design pattern, and Mapbox SDK

Developed custom applications for healthcare, education, and media clients using Objective-C and MVC pattern