Jaydip D.

I build polished, high-performing iOS and cross-platform apps — and help businesses add practical AI features that users actually love. With 10+ years in mobile development and 35+ completed Upwork projects, I've worked as Lead Mobile Developer for a UK health-tech company and Senior Mobile Developer at HPE. I take apps from idea to App Store, or step into existing codebases to fix, scale and modernize them. WHAT I CAN DO FOR YOU • AI-powered app features: chat assistants, smart search, summarization and content generation using OpenAI / Claude APIs, plus on-device intelligence with Core ML and Vision • New iOS apps in Swift and SwiftUI, built with clean, maintainable architecture (MVVM, VIPER) • Cross-platform apps in Flutter for iOS and Android from one codebase • Modernizing legacy apps: Objective-C to Swift, UIKit to SwiftUI, performance and crash fixes • Bluetooth (BLE) and hardware-connected apps, health and fitness apps, location and motion features • Backend integration: REST APIs, Firebase, real-time sockets, push notifications, in-app purchases • App Store submission, TestFlight releases and ongoing maintenance WHY CLIENTS WORK WITH ME • Senior-level experience — fewer bugs, faster delivery, honest technical advice • Clear communication and regular progress updates • Overlap with US mornings / UK working hours • Available for long-term and ongoing work (30+ hrs/week) TECH STACK Swift, SwiftUI, Objective-C, UIKit, Flutter, Dart, Kotlin, Core Data, CoreBluetooth, CoreLocation, CoreMotion, Core ML, Firebase, SocketIO, OpenAI and LLM APIs, Git, Xcode, Android Studio, Figma, Jira Have an app idea, an existing app that needs fixing, or want to add AI to your product? Send me a message with a short description — I'll reply with a clear plan and next steps. — Jaydip