.NET / C# Developer - Senior - #879
Fort Belvoir, Virginia, United StatesPosted Aug 12, 2026
Requirements at a glance
.NET / C# Developer - Senior - #879 at Allen Integrated Solutions is a role based in Fort Belvoir, Virginia, United States. It does not mention visa sponsorship. It lists a TS/SCI clearance with polygraph requirement. Key skills include C#/.NET and SQL. Applications are submitted through Greenhouse.
- Visa sponsorship
- Not mentioned in the posting
- Security clearance
- TS/SCI with polygraph
- Application platform
- Greenhouse
Skills in this posting
- C#/.NET
- SQL
Extracted automatically from the job description. Confirm details in the full posting below.
.NET / C# Developer - Senior - #879
Location: Fort Belvoir, VA
TS/SCI w/CI Poly REQUIRED
Experience:
- 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.