Amritpal Singh S.

Hi, I am a Top Rated Plus Mobile App Developer (Top 3% on Upwork) with 10+ years of experience delivering production-ready iOS and Android applications using native and hybrid technologies. I help startups and businesses build, maintain, optimize, and scale mobile apps that are fast, stable, and App Store compliant. Core Mobile Development Services 1. iOS App Development (Swift, SwiftUI, Objective-C) 2. Android App Development (Kotlin, Java) 3. Cross-Platform App Development (React Native, Flutter) 4. Mobile App Maintenance & Bug Fixing 5. App Store & Google Play Deployment 6. Performance Optimization & Stability Improvements Technologies & Skills (SEO-Focused) - Mobile App Development - iOS Developer / Android Developer - Swift Developer / Kotlin Developer - React Native Developer / Flutter Developer - Native & Hybrid Mobile Apps - REST API Integration - Payment Gateways & Subscriptions - Push Notifications - Real-Time Features - App Security & Authentication - Mobile UI / UX Implementation UI / UX & Design Collaboration ~ Figma, Adobe XD, Sketch, Photoshop (Design-to-pixel-perfect implementation) Why Clients Hire Me 1. Proven track record with 100% Job Success 2. Senior-level problem solving 3. Clean, maintainable, scalable code 4. Clear communication and reliable delivery 5. Strong experience with live production apps If you’re searching for a senior mobile app developer, iOS & Android expert, or a React Native / Flutter specialist who can own your app end-to-end, I’m ready to help. Thanks! Amrit