Sumant A.

🚀 $50K+ Earned on Upwork | Mobile & Full-Stack Developer | React Native, Flutter, iOS, Android & AI

I help startups and businesses build, fix, and scale mobile and web applications that are reliable, fast, and ready for real users.

With 10+ years of Mobile app development experience and $50K+ earned on Upwork, I've worked across the complete product lifecycle — from MVPs and new product development to debugging, performance optimization, API integrations, AI features, and production scaling.

Clients usually come to me when they need someone who can take ownership of the technical side and get the product shipped without cutting corners.

What I can help you with:

📱 Mobile App Development
• React Native & Expo
• Flutter
• iOS with Swift / SwiftUI
• Android with Kotlin / Java
• App Store & Google Play deployment

🌐 Web & Full-Stack Development
• React.js, Next.js, Angular
• Node.js / NestJS
• Laravel / PHP
• WordPress
• REST & third-party API integrations

🤖 AI & Modern Applications
• AI chatbots and assistants
• OpenAI / ChatGPT API integrations
• AI-powered recommendations
• AI automation workflows
• AI features inside mobile and web applications

⚙️ Fix, Improve & Scale
• App crashes and ANRs
• Performance and memory issues
• Payment and API problems
• Legacy code and refactoring
• Architecture improvements
• Production bugs and stability issues
• New features without breaking existing functionality

🗄️ Backend, Cloud & Database
• Node.js, Laravel
• MySQL, MongoDB, PostgreSQL
• Firebase
• AWS
• Azure

What working with me looks like:

✅ Clear scope and technical plan before development
✅ Daily or milestone-based progress updates
✅ Clean, maintainable and documented code
✅ Focus on solving root problems, not temporary fixes
✅ Reliable communication and ownership
✅ Development with scalability and long-term maintenance in mind
✅ Post-launch support when needed

Whether you're building an MVP, launching a new mobile app, adding a mobile application to an existing SaaS product, integrating AI, or fixing an unstable production system, I can help you move forward with the right technical approach.