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.NET / C# Developer - Senior - #879

Allen Integrated SolutionsFort Belvoir, VA🇺🇸United StatesPosted 18 Aug 2026

Why This Role Stands Out

As a Senior .NET/C# Developer, you will leverage your extensive experience to drive impactful projects within a reputable technology firm, with opportunities for mentorship and professional growth in a hybrid work environment. If you possess a strong background in .NET development, SDLC, testing, and SQL, and hold the required TS/SCI clearance, this role offers a chance to advance your career and contribute to critical initiatives. Apply today to explore this exciting opportunity!

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

.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.

Skills

SQL
C#
.NET

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