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C# Developer

Allen Integrated Solutions · Fort Belvoir

Posted 12 Aug 2026

Advertised as “.NET / C# Developer - Senior - #879”

BranchFactor Summary

The original posting with the fluff stripped out

Level: #879
Expected experience: 8+ yrs
Management level: People management

Compensation

No salary listed for this role.

Role speciality

.NET Development

Useful technologies

C#Internet Information Services (IIS)MS.NETMVC 4+.NETSQLWindows Server

Original posting

.NET / C# Developer - Senior - #879

Location: Fort Belvoir, VA

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C# Developer at Allen Integrated Solutions — BranchFactor

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.

Which skills are in demand for this role? →

More openings like this

C# DeveloperJefferies · Jersey City, NJ, United StatesUSD 140K–175K C# DeveloperMARGO · WarsawPLN 170–190 C# DeveloperVeeam Software · Remote, United States C# DeveloperVeeam Software · Prague, Czechia See all Software Engineering openings →

Sourced from greenhouse · original listing