Zeeshan K.

Are you looking for a senior .NET developer who can turn complex business requirements into reliable, scalable software? I’m Zeeshan, a full-stack .NET and Cloud Developer with 🏆 10+ years of experience building SaaS products, modernizing legacy systems, and delivering business-critical applications. I help companies build secure ASP.NET/C# platforms, REST APIs, SQL Server solutions, AWS deployments, SharePoint workflows, and low-risk batch-data migrations. I also understand the requirements of regulated applications, including 21 CFR Part 11 considerations such as audit trails, role-based access, electronic records, validation, and data integrity. *What I Can Deliver* ✅ End-to-end SaaS application development—from architecture to deployment ✅ Scalable ASP.NET and C# web applications ✅ Secure REST APIs and third-party integrations ✅ SQL Server architecture, query optimization, and database maintenance ✅ Batch-data migrations with validation and minimal disruption ✅ AWS deployment, infrastructure, monitoring, and cost-aware operations ✅ SharePoint solutions that streamline collaboration and business processes ✅ Legacy .NET modernization to improve performance, stability, and maintainability ✅ Software features for 21 CFR Part 11–aligned regulated environments Technical Focus Backend: C#, .NET, ASP.NET, REST APIs, integrations SaaS & Cloud: multi-tenant application architecture, AWS deployment, monitoring, and scalability Data: SQL Server design, optimization, migrations, validation, and data integrity Enterprise & Compliance: SharePoint, role-based access, audit trails, and regulated-system workflows I focus on the business problem first, then deliver practical, maintainable solutions with clean code, transparent communication, and long-term reliability in mind. If you need a SaaS product, a secure .NET application, AWS deployment, SQL optimization, SharePoint development, a compliant workflow, or a complex migration, let’s discuss your project.