Aiyaar O.

🚀 I build production-ready mobile apps that businesses can actually scale. Senior .NET MAUI & Flutter developer with 7+ years of experience, 50+ production apps, and $90K+ earned on Upwork. I help startups and businesses build, fix, modernize, and scale iOS & Android applications. My core expertise: • .NET MAUI & Flutter — scalable cross-platform mobile apps • Xamarin → .NET MAUI — migrations, modernization & performance • AI-powered apps — OpenAI, GPT, OCR, voice & intelligent features • ASP.NET Core — APIs, authentication & backend systems • Azure & Firebase — cloud services, databases & push notifications • Payments, Maps, SignalR & third-party integrations • App Store & Google Play — testing, deployment & release ### Why clients hire me I take ownership of the product, not just the task. You get senior-level architecture, clean production code, practical problem-solving, and someone who can handle the mobile app from development through deployment. Whether you are starting from scratch, dealing with a difficult bug, inheriting an existing codebase, or migrating Xamarin to .NET MAUI — I can step in and move the project forward. Apps shipped: TrinDocs · Crushfit · Slice & Spin · CV Wallet · HBoxTV + 45 more. Have a mobile project in mind? Send me the details and I'll tell you the best way to approach it.