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I build .NET desktop applications and full stack web systems. 15+ years of professional experience, the last several as lead developer on WPF software for the medical device industry: applications that control RFID readers, electric motors, thermal printers, and sensors in production environments. That kind of work demands a different standard than typical web projects. The software can't crash. The data has to be right. The hardware integration has to be reliable under load. That's the bar I'm used to working to. On Upwork I take on .NET full stack work: WPF desktop apps, ASP.NET Core backends, Angular frontends, PostgreSQL databases. Clients who hire me need senior-level execution, not hand-holding. What I work in: - Desktop: WPF, WinForms, .NET / Framework - Backend: ASP.NET Core, C#, REST APIs, SignalR - Frontend: Angular, TypeScript, JavaScript - Databases: PostgreSQL, SQL Server, MySQL, MariaDB - Hardware: RFID readers, serial/USB device integration, thermal printers - Automation: n8n (workflow design, custom nodes, SaaS integrations) - Cloud: Azure, AWS - AI: OpenAI API, Claude API, Vapi, Ollama - Messaging: Kafka, RabbitMQ, Amazon SQS - Infrastructure: Docker, Kubernetes, ECS Fargate, GitHub Actions, AWS Secrets Manager, Redis What I don't do: I don't take jobs where I'd be filling a junior or mid-level role. If the work requires serious .NET architecture, desktop application development, or hardware-software integration, it's the right fit. If it's a simple CRUD app or WordPress site, it isn't. Track record on Upwork is thin. I'm new to the platform. My day job is lead developer on medical-grade software and I'm building my Upwork history selectively. Both completed jobs are 5 stars. The work history on the platform will grow; the experience behind it is already there. Ready to look at your project. Message me with the scope.

Are you looking for a developer who understands both the code and the infrastructure it runs on? I am a Software Engineer with a background in enterprise systems administration and backend development, specializing in building secure, scalable, and high-performance applications I focus on delivering clean, reliable implementations from provided designs and requirements My strength lies in bridging the gap between infrastructure and application code, ensuring your software is not only functional but also resilient and maintainable from day one. WHY PARTNER WITH ME? * Infrastructure-First Development: With 3 years of experience in systems administration, I build solutions that are optimized for deployment, scalability, and security * Strong Backend Foundation: I am a specialist in the Microsoft ecosystem, leveraging C#, .NET 8/9, and SQL Server to build robust backend architectures and high-performance APIs * AI-Enhanced Efficiency: I utilize advanced AI workflows (Claude, GitHub Copilot) to accelerate development cycles and maximize unit test coverage, ensuring high code quality * Proven Results: As the founder of a multi-tenant SaaS platform, I have managed end-to-end lifecycles from relational data modeling (PostgreSQL/Prisma) to successful product deployment MY CORE TECHNICAL STACK: * Backend: C#, .NET 8/9, ASP.NET MVC, RESTful APIs, Entity Framework * Frontend Implementation: Experienced in implementing designs using React, Next.js, and TypeScript * Database: Expert in SQL Server (MSSQL), PostgreSQL, and Prisma ORM, including query optimization and database tuning * Infrastructure & DevOps: Proficient in Docker, CI/CD pipelines, Windows Server, and IIS administration I am a results-oriented engineer dedicated to delivering secure and performant solutions that align with your business goals If you have a project that requires a solid backend and reliable implementation, let’s discuss how I can help. Ready to start? Send me a message and let's get to work.