EmployeeTechnology

.Net Developer with Security Clearance

Blue Rose Consulting Group, Inc.Washington, DC🇺🇸United StatesPosted 21 Oct 2026

Why this role stands out

This on-site .NET Developer role offers a fantastic opportunity to contribute to national security projects, leveraging your C# and ASP.NET expertise to develop and enhance critical applications while gaining experience in CI/CD and Agile methodologies. You'll thrive here if you possess a strong foundation in .NET development and are eager to grow your skills within a mission-focused environment. Apply today to join a team dedicated to impactful work and professional development.

Quick overview

SeniorityMid Senior

Employment typeEmployee

Work modeOn Site

LocationWashington, DC, United States

SAFeSQLGitC#.NETASP.NETSQL ServerAgileData AnalysisCI/CDVisual Studio

Job description

About the role
People First. Mission Always.

Location: Colorado Springs/ Washington, D.C.

Metro Area Work Arrangement: Primarily based at a contractor site within 30 driving miles of Colorado Springs/ Washington, D.C., with onsite support at Department of State facilities as required Blue Rose Consulting Group is seeking a Mid-Level .NET Developer (Programmer 2) to support a large-scale .NET application within a national security environment. This position will develop and enhance C#/ASP.NET solutions while supporting data analysis, reconciliation, consolidation, reporting, user interface development, mobile application development, and CI/CD activities.

Job Responsibilities
Develop and maintain enterprise applications using C# and ASP.NET. Support both client-side and server-side application development. Perform data analysis, reconciliation, and consolidation. Integrate data from multiple sources and support deduplication activities. Analyze trends and patterns and develop queries and reports. Design and develop user interface components. Support mobile application development. Develop solutions using .NET Framework and .NET Core. Work with Entity Framework and SQL Server. Support Web API development.

Use Visual Studio 2019+ and GitLab source control. Participate in CI/CD and Agile software delivery processes. Apply object-oriented analysis and design principles to application development. Minimum Qualifications
4+ years of C#/ASP.NET software development experience on complex technical projects, including highly available national security systems. Intermediate understanding of C#/ASP.NET enterprise software architecture components and patterns. Intermediate understanding of ASP.NET Framework 4.0 or greater and .NET Core. Experience with both client-side and server-side development.

Experience with Entity Framework. Experience with Visual Studio 2019+. Experience with object-oriented analysis and design. Experience with SQL Server. Experience with GitLab source control. Experience with data analysis and reconciliation. Experience with multi-source data integration and deduplication. Experience with query development and reporting. Experience with user interface design and development. Strong problem-solving skills and attention to detail. Active Final DoD Secret Security Clearance.

Preferred Qualifications
Experience developing Web APIs. Located in Colorado or the DMV area. Experience supporting a large-scale federal IT program. Experience with the SAFe Agile delivery framework.