> Markdown version of [/jobs/ext/2646542-net-c-developer-senior-879](https://www.wearedevelopers.com/jobs/ext/2646542-net-c-developer-senior-879). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # NET / C# Developer - Senior - #879 - **Company:** Allen Integrated Solutions - **Location:** Fort Belvoir, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Unit Testing, Bug Tracking Systems, C Sharp (Programming Language), Web Development, Internet Information Services (IIS), Windows Servers, Model View Controller (MVC), Systems Development Life Cycle, Software Engineering, SQL Stored Procedures, SQL Databases, System Testing, SC Clearance, Bug Reporting - **Published:** August 11, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=960eea9933376c2b ## About the Role * Eight years of experience in .NET Development (including MS.NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development). * Five years of experience with Software Development Life Cycle Process (SDLC). * Five years of experience with software development Unit Testing, System Testing, Functional Testing, User Acceptance Testing, or other development testing experience. * Five years of experience in SQL database development stored procedures. * Five years of experience mentoring junior personnel on proper practices and procedures. * Five years of experience documenting software defects using a bug tracking system and reporting defects to software developers and project managers. Certifications: * TS/SCI clearance with SBI and ability to attain SI, TK, G, HCS, and NATO Secret clearance; DoD 8140.03 IAT Level II / Intermediate certification. ## Related Videos - [Architectures that we can use with .NET](https://www.wearedevelopers.com/videos/935-architectures-that-we-can-use-with-net) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [Are you still programming unit tests or already generating?](https://www.wearedevelopers.com/videos/722-are-you-still-programming-unit-tests-or-already-generating) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1520-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read)