Masum Ayanoglu

Currency converter app focused on speed and clarity. Set up exchange pairs with a base currency against multiple targets in a single view, convert amounts with a built-in calculator, and access your last synced rates offline for travel or spotty connections. Reorder your currency lists so the ones you actually use are always on top. My focus was on the backend, building a swappable data provider architecture for real-time rate updates using various products on Google Cloud. Dealt with performance bottlenecks around data intensity, optimizing for both cost and speed. Also handled ASO. Built with Swift and SwiftUI.

Virtual try-on app that lets you see yourself wearing any clothing item before buying it. Upload a photo, add clothing from any store, and get a realistic try-on in seconds. Supports multiple items for complete outfits, auto-categorizes your wardrobe, and includes side-by-side comparisons. Localized for 15 languages. Built with Swift and SwiftUI. My main focus was on the backend and AI integration. Built the pipeline that handles image generation and other AI services, along with a cost monitoring system that tracks spend in real time, flags abnormal usage, and includes programmatic safeguards to prevent runaway costs.

Built a trading journal app that lets traders log entries and see their performance as a color-coded calendar. Green days, red days, patterns you'd never catch in a spreadsheet. Supports stocks, crypto, forex, futures, and options. Tracks commissions, compares months, and lets you tag trades with emotions to spot psychological patterns. Includes CSV import/export, biometric security, and localization for 16 languages. Wrote Python scripts for automated App Store localization, UI tests for generating screenshots across all 16 languages, and handled ASO. Built with Swift and SwiftUI.