Mahmoud K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I’m a Senior .NET Developer and Software Architect with 10+ years of experience building, modernizing, integrating, and supporting enterprise software solutions using Microsoft technologies. My core expertise includes C#, .NET, ASP.NET Core, Web APIs, microservices, SQL Server, Angular, Azure, Docker, Kubernetes, RabbitMQ, DDD, CQRS, and distributed systems. I also have extensive hands-on experience with Microsoft SharePoint, particularly SharePoint 2016/2019 On-Premises, custom development, migrations, integrations, and enterprise environments. ### What I can help you with: • Design and develop scalable .NET / ASP.NET Core applications and REST APIs • Build and modernize microservices and distributed systems • Implement DDD, CQRS, event-driven architectures, and RabbitMQ • Develop Angular + .NET full-stack applications • Design and optimize SQL Server databases and data-intensive applications • Develop and customize SharePoint solutions using C#, SSOM, WSPs, Web Parts, Event Receivers, and integrations • Perform SharePoint migrations and upgrades, including SharePoint 2016/2019 environments • Troubleshoot and modernize existing enterprise applications and legacy systems • Integrate applications with third-party, healthcare, and enterprise systems • Improve application performance, reliability, and scalability I have worked on healthcare, financial, and enterprise platforms, dealing with complex integrations, large data volumes, production issues, and mission-critical systems. I’m comfortable joining an existing codebase, understanding unfamiliar systems quickly, solving production problems, or taking ownership of a project from architecture and development through deployment and ongoing support. If you need someone who can work across both modern .NET development and Microsoft SharePoint, while understanding the bigger enterprise architecture picture, I can help.