Umar M.

Full stack developer and AI developer with 12+ years building SaaS platforms, AI agents, APIs and .NET systems that hold up in production. $300K+ earned on Upwork · Top Rated Plus. You need software that works on day one and keeps working as you grow built by someone who understands your business, not just the code. I'm Umar, a U.S.-based senior engineer in North Carolina. I personally own every project from architecture to deployment: one point of contact, no hand-offs, no surprises. 𝗪𝗵𝗮𝘁 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲 𝗳𝗼𝗿: - SaaS and web applications React, Next.js, Node.js, TypeScript, Python and PostgreSQL, with Stripe subscriptions, multi-tenant architecture, dashboards and admin panels - AI development AI agents, AI chatbots, LLM integration with OpenAI and Claude, RAG pipelines, vector search and document AI built into real workflows - Taking AI-built prototypes to production your app started in Lovable, Bolt, Cursor or Replit and now needs auth, security, payments, testing and real infrastructure - .NET and enterprise systems ASP.NET Core, C#, Azure, and modernizing legacy .NET applications without breaking what already works - API development and integration REST, GraphQL, webhooks, OAuth, Twilio, Google Maps, CRM and payment gateway integrations - Mobile apps React Native for iOS and Android - Cloud and DevOps AWS, Azure, Docker and CI/CD I work best with founders and teams who need a senior engineer to own the technical side, whether that's building an MVP the right way or scaling a product that's outgrowing its first version. If that's where you are, send me a message with what you're building and I'll reply with how I'd approach it. 🇺🇸 U.S.-based. Archdale, North Carolina. Services: Web & Software Development Full-stack development · Web application development · Custom software development · SaaS development · MVP development · Dashboard and admin panel development · Legacy modernization · Systems integration AI Development AI integration · AI agents · Agentic AI · LLM integration (OpenAI, Claude, Gemini) · RAG (Retrieval-Augmented Generation) · AI chatbots · Voice AI agents · MCP server development · Document AI · Prompt engineering · AI automation Automation Workflow automation · n8n · Zapier · Make .com · CRM automation · Web scraping · Data extraction .NET & Enterprise | ASP.NET Core · C# · .NET migration · Azure OpenAI · Entity Framework · SQL Server Mobile | React Native · Expo · iOS and Android app development Stack | React · Next.js · Node.js · Express · Python · FastAPI · Django · TypeScript · JavaScript · Redux · Tailwind · REST APIs · GraphQL · PostgreSQL · MySQL · MongoDB · Redis · Supabase · Firebase Payments & Integrations | Stripe · PayPal · Twilio · OAuth · Google Maps API · Webhooks · Third-party API integration Cloud & DevOps | AWS · Microsoft Azure · Vercel · Docker · CI/CD · Microservices · Performance optimization