IOS / macOS / Android developer (Swift, Objective-C, Kotlin, Java, Dart, Flutter)

sergemoskalenko.github.io/sergemoskalenkocv202603en.html

* Turn Your App Idea Into a Top-Rated Success Story

Full-cycle iOS/macOS, Android & Flutter development — from scratch straight to the App Stores.

* Level up your existing apps: Integrate cutting-edge AI, eliminate critical bugs, and modernize legacy code (Objective-C, Swift, Kotlin, Java, Dart, C, C++).

Let’s create mobile experiences users love and businesses profit from.

Ready to launch? Let’s go! 

PROFESSIONAL SUMMARY

Innovative Senior Software Developer and Tech Lead with over 25 years of experience in software engineering. Expert in iOS (Swift/Objective-C) , Android (Kotlin) , and Cross-platform (Flutter/Dart) development. Proven track record in integrating AI/LLM APIs,architecting complex mobile ecosystems, and leading engineering teams. Specialized in high-performance applications, legacy code modernization, and end-to-end project delivery.

TECHNICAL SKILLS

• Languages: Swift, Kotlin, Dart, Objective-C, C++, PHP, SQL, JavaScript.
• Frameworks/Tools: Flutter, SwiftUI, UIKit, Combine, RxSwift, CocoaTouch, AppKit (macOS).
• AI & Backend: OpenAI API integration, Prompt Engineering, JSON/XML tech-prompts, REST API, Telegram Bot API, Firebase.
• Architecture: MVVM, VIPER, Clean Architecture, Dependency Injection (Swinject), Unit Testing.
• Database & Storage: Realm, SQLite, CoreData, Moya, Alamofire.
• Design & Collaboration: Figma, Zeplin, Sketch, Git, CI/CD, Sentry, Stripe.