Vitalii P.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Would you like to hire an experienced Senior Apple Developer? I have 18+ years of experience building applications for iOS, macOS, iPadOS, tvOS, watchOS and visionOS. I'm an expert in Swift, SwiftUI, Objective-C and using Apple's frameworks. I help product teams build super reliable Apple apps. I also help clean up legacy code bases and solve complex performance and architecture problems. In production I've helped speed up object mapping by 10x, reduce memory usage by 7x and reduce app size by 4x. SERVICES: - iOS/Mac Native App Development - Cross Platform SwiftUI Apps - Modernization of Objective-C to Swift - Refactor of UIKit/AppKit to SwiftUI - Architecture/Refactor (MVVM/MVVM-C/Clean Architecture/Dependency Injection/SOLID) - Performance/Memory/Size Optimisation - AI/LLM Integration (OpenAI & Anthropic APIs) - Camera/Video/Screen Recording/Photos/Media - IoT/Core Bluetooth/REST/WebSockets/Smart Home/Robotics - Payment Integration (Stripe/Braintree & 7 other payment services) - CI/CD/Code Reviews/Unit/UI Testing/App Store Delivery TECHNOLOGIES Swift / SwiftUI / Objective-C / C++ / UIKit / AppKit / Combine / AVFoundation / Core Video / SwiftData / Core Data / Core Bluetooth / CloudKit / StoreKit / CryptoKit / XCTest / Swift Package Manager / Git / Xcode. HOW IT WORKS Work directly with a senior developer. Get clear estimates and regular updates. Technical decisions will be made with practicality in mind. I can provide full delivery of this solution, take responsibility for a specific modernisation task or work with your current engineering team. Let me know what platform you are on, what the codebase looks like and what you want to achieve. I'll give you an honest overview of what needs doing, any risks and how we can move forward.