# .NET / C# Developer - Senior - #879 at Allen Integrated Solutions

.NET / C# Developer - Senior - #879 at Allen Integrated Solutions in Fort Belvoir, Virginia, United States. Posted August 12, 2026.

- Company: Allen Integrated Solutions
- Location: Fort Belvoir, Virginia, United States
- Posted: 2026-08-12
- Apply: https://job-boards.greenhouse.io/allenintegratedsolutions/jobs/7850007003
- Source: https://jobmagic.ai/jobs/net-c-developer-senior-879-allen-integrated-solutions-qgxcst

## Description

**.NET / C# Developer - Senior - #879Location: **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.