Alexander D.

Senior iOS Developer with 10+ years of experience building, maintaining, and improving production iOS applications. I specialize in Swift, UIKit, SwiftUI, subscriptions, analytics, and complex existing codebases. Need someone to join an existing iOS project, understand the codebase, and start delivering without rewriting everything from scratch? That’s the kind of work I do regularly. I can help with: • New iOS features based on Figma or existing product requirements • Maintenance and development of existing Swift/UIKit applications • Legacy code modernization and safe refactoring • RevenueCat, StoreKit 2, subscriptions, paywalls, trials, and offers • Firebase, Crashlytics, Remote Config, Amplitude, and analytics • REST API and third-party SDK integrations • UIKit and SwiftUI development • App Store releases, production issues, and bug fixing I’m comfortable working with mature production apps where understanding existing architecture and avoiding regressions is just as important as writing new code. Why clients hire me: • 10+ years of iOS development experience • 2,000+ hours worked on Upwork • $60K+ earned on Upwork • 100% Job Success • Experience with both long-term products and focused feature development My current stack includes Swift, UIKit, SwiftUI, MVVM, RevenueCat, StoreKit 2, Firebase, Crashlytics, Remote Config, Amplitude, Adjust, OneSignal, REST APIs, and Apple frameworks. If you have an existing iOS app that needs an experienced developer who can understand the project quickly and move it forward, send me a message and tell me what you’re working on.