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.NET Developer with Security Clearance

TEKsystems c/o Allegis GroupWashington, DC🇺🇸United StatesPosted 15 Sept 2026

Why This Role Stands Out

Leverage your .NET and security clearance expertise in this dynamic hybrid role, offering significant opportunities for professional growth and impact within a reputable company. You'll thrive here if you're a skilled developer eager to design, build, and maintain robust web applications while collaborating with talented teams, and you are encouraged to apply!

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
Hybrid
Location
Washington, DC, United States
Posted
16 hours ago
Node.jsSQLSQL ServerC#.NETASP.NETGitJavaScriptRESTReactTypeScript

Job Description

Top Skills

  • Mid & Senior Level openings
  • Experienced with ASP.NET framework, Entity Framework, SQL Server and design/ architectural patterns (e.g. APIs with Dependency Injection)
  • Experienced with .NET languages (e.g. C#, ADO.NET, EF)
  • Familiarity or experience with architecture styles/APIs (REST, RPC)
  • Develop and maintain web applications using React, TypeScript, JavaScript, Node.js and HTML5/CSS3 - Design and implement both front-end and back-end components of the application.
  • Ensure the performance, quality, and responsiveness of applications.
  • Collaborate with cross-functional teams to define, design, and ship new features.
  • Write clean, scalable, and maintainable code following best practices.
  • Conduct thorough testing of applications, including unit, integration, and system testing.
  • Troubleshoot and resolve technical issues and bugs.
  • Participate in code reviews and provide feedback to peers.
  • Use Git/Gitlab for source control - This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI) or the ability to be obtain an (Interim Secret, Interim Top Secret)
  • Because an active or interim DoD clearance is required, U.S. Citizenship is required Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms.  If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program
Time Off/Leave (PTO, Vacation or Sick Leave)

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