Mohammad Irfan S.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.

Looking for a senior iOS developer who can turn your idea—or an existing codebase—into a fast, scalable, App Store-ready product? I bring 14+ years of experience building, improving, and launching native iPhone and iPad applications. I help startups and established businesses develop reliable MVPs, modernize legacy apps, integrate AI features, resolve difficult performance issues, and successfully ship through TestFlight and the App Store. My focus is not simply writing code. I build polished products with maintainable architecture, responsive interfaces, reliable integrations, and a strong foundation for future growth. 💼 iOS Development Services • Native iOS and iPadOS app development • Swift, SwiftUI, UIKit, Combine, and Swift Concurrency • Swift 6, async/await, actors, and thread-safe architecture • AI and LLM integration using OpenAI APIs and custom AI services • On-device machine learning with Core ML and Vision • OCR, image recognition, background removal, and intelligent automation • MapKit, MapLibre, Mapbox, Core Location, and GPS tracking • REST API, GraphQL, Firebase, and third-party SDK integration • SwiftData, Core Data, offline storage, and cloud synchronization • StoreKit 2, subscriptions, in-app purchases, and Apple Pay • Push notifications, deep links, authentication, and analytics • App Store submission, TestFlight distribution, and release support 🛠 Architecture, Quality & Optimization • MVVM, Clean Architecture, SOLID principles, and modular development • Dependency injection and scalable application architecture • XCTest, unit testing, UI testing, and maintainable test coverage • Performance optimization, memory management, and crash analysis • UIKit-to-SwiftUI migration and legacy application modernization • Code review, refactoring, debugging, and technical consulting • Swift Package Manager, Git, CI/CD, and automated release workflows • Accessibility, localization, and Apple Human Interface Guidelines 🧠 Why Clients Work With Me • 14+ years of professional iOS development experience • Senior-level ownership from planning through App Store release • Deep knowledge of performance, concurrency, and memory management • Clean, documented, and maintainable production code • Clear communication and practical technical recommendations • Experience rescuing, stabilizing, and scaling existing applications • Product-focused decisions based on business and user needs 📱 Selected Project Experience • AI-powered property management app with OCR-based rent receipt processing • Real-time weather and mapping app using ECMWF and GraphCast datasets • Intelligent image editing app with background removal and upscaling • Reusable payment SDK for secure and seamless app integration Whether you need to build an iOS MVP, add AI capabilities, migrate from UIKit to SwiftUI, integrate APIs, fix crashes, or prepare an application for release, I can take ownership and move the product forward. 💬 Send me a message with your idea, requirements, or current technical challenge. I’ll help you identify the best path to a stable, polished, high-performing iOS application.