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# Mid-Level .NET Developer

- **Company:** Blue Rose Consulting Group
- **Location:** Washington, DC, United States (Remote available)
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** ASP.NET, .NET Framework, Agile Methodology, Data Analysis, C Sharp (Programming Language), Mobile Application Development, Continuous Delivery, Continuous Integration, Data Deduplication, Data Integration, Entity Framework, Design of User Interfaces, Human-Computer Interaction, Microsoft SQL Server, Object-Oriented Software Development, Software Engineering, Enterprise Software Applications, .NET Core, Gitlab, ASP.NET Applications, Software Version Control, Web Api
- **Published:** November 13, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9311370/mid-level-net-developer

## About the Role

* 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 Washington, D.C. metropolitan area (DMV).
 * Experience supporting a large-scale federal IT program.
 * Experience working within the SAFe Agile delivery framework.

What Success Looks Like

Success in this role requires a developer who can contribute effectively across both client-side and server-side development while working with complex data and enterprise application environments. The ideal candidate is technically capable, detail-oriented, and comfortable solving problems within mission-critical systems.

## Description

Blue Rose Consulting Group is seeking a Mid-Level .NET Developer to support a large-scale .NET application within a national security environment.

This role will develop and enhance C#/ASP.NET solutions while supporting data analysis, reconciliation and consolidation, reporting, user interface development, mobile application development, and Continuous Integration/Continuous Delivery (CI/CD) activities.

The Mid-Level .NET Developer will contribute to both client-side and server-side development while working with modern .NET technologies, data integration solutions, and Agile software delivery processes.

This position requires an active Final DoD Secret security clearance., * 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., * Developing reliable and maintainable C#/ASP.NET applications.
 * Effectively supporting both client-side and server-side development.
 * Working accurately with data from multiple sources.
 * Developing effective queries, reports, and user interface components.
 * Contributing successfully to CI/CD and Agile software delivery processes.
 * Collaborating effectively with development and engineering teams.
 * Demonstrating strong problem-solving, attention to detail, and ownership of assigned development activities.