IOS Developer

- Developed and integrated new logic game modules into the existing app.
- Engineered a complex, 20+ screen onboarding workflow controlled dynamically via Firebase RemoteConfig.
- Maintained and optimized a large-scale codebase with 30-40% Objective-C legacy code.
- Developed custom paywalls, feature lockers, and onboarding features to maximize application monetization.
- Conducted code cleanup by removing obsolete features, unused paywalls, and dead code, significantly increasing app performance.
- Fully overhauled the application onboarding flow, implementing a dynamic system driven by Firebase RemoteConfig for A/B testing and remote updates.
- Successfully migrated the in-app purchase system from StoreKit 1 to StoreKit 2, modularizing the code into an isolated local library.
- Integrated and updated OpenAI/ChatGPT API clients to the latest response formats, extracting the logic into a separate Swift package to achieve clean architecture.
- Architected a multi-environment infrastructure by separating Firebase Dev/Prod environments and maintained backend triggers using Firebase Functions (Python).

- Delivered 15+ end-to-end iOS applications under tight deadlines (average time-to-market: 2–4 weeks per app), taking full ownership of development, integration, and deployment preparation.
- Developed native applications including sports trackers, match tables, interactive quizzes, and 2D games using SpriteKit, UIKit, and SwiftUI.
- Exceeded probation KPIs by 100%+, autonomously finalizing 4 production-ready apps ahead of schedule.
- Architecture & Refactoring Achievement: Successfully rescued a failing, unmaintainable asynchronous project by refactoring a complex Combine-based module into a predictable State pattern (managing 20+ distinct UI states). This resolved severe performance bottlenecks and made the module highly maintainable.