Senior .NET Application Developer, Secret cleared
Job in
Arlington, Arlington County, Virginia, 22201, USA
Listed on 2026-10-05
Listing for:
Colonial Group
Full Time
position Listed on 2026-10-05
Job specializations:
-
Software Development
.NET Developer, Software Engineer, Backend Developer, Full Stack Developer
Job Description & How to Apply Below
Make an Impact. Build Technology. Support the Mission.
ASRC Federal Technology Solutions is seeking a Senior .NET Application Developer to support the critical mission of the Drug Enforcement Administration (DEA).
You’ll develop and enhance applications that provide essential tools to DEA agents and the broader law enforcement community. This is an opportunity to apply your .NET expertise to technology that supports a mission with real-world impact.
Location:Arlington, VA or Merrifield, VA
Clearance:Active Secret Clearance Required
What You’ll Do- Develop and enhance applications within the Concorde framework, delivering high-quality, efficient solutions in a collaborative Agile environment.
- Participate in sprints, backlog grooming, Agile ceremonies, development activities, and technical demonstrations.
- Develop and support applications across Classified, Unclassified, and Sensitive but Unclassified (SBU) environments.
- Support legacy applications and contribute to seamless integration and operational continuity.
- Apply Dev Sec Ops principles throughout the development lifecycle.
- Quickly deliver small projects and transition effectively between applications and priorities.
- Package and deliver software and documentation to production.
- 8+ years of recent ASP.NET, C#, and MVC-based web development using Visual Studio 2017 or higher.
- 5+ years of .NET Core/.NET Standard development experience.
- 5+ years of experience with Agile development methodologies, including sprints, backlog grooming, and Agile ceremonies.
- Strong experience with ASP.NET, C#, LINQ, MVC, Entity Framework, and Unity.
- Significant recent JavaScript and CSS development experience.
- Experience with HTML, AJAX, jQuery, SQL, and relational data models.
- Experience with Oracle and SQL Server databases.
- Experience with XML and XML programming libraries.
- Experience developing in an environment supporting 10,000+ users and an RDBMS with 250+ tables and 1M+ total rows.
- Experience with Team Foundation Server (TFS).
- Experience packaging and delivering software and documentation to production.
- Excellent communication and collaboration skills.
- Experience with SharePoint, NHibernate, T4 templates, ReSharper, and Classic ASP is a plus.
- Bachelor’s degree in Computer Science, Engineering, or a related field.
- 12+ years of general experience, including 10 years of specialized and/or hands‑on Agile development experience.
- 12+ years of demonstrated experience may substitute for the degree requirement.
- U.S. Citizenship required
- Active Secret clearance required
- Must meet government security investigation and DEA suitability requirements
Position Requirements
10+ Years
work experience
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