Mid-Level .NET Developer

About Blue Rose Consulting Group

Blue Rose Consulting Group is a mission-driven federal contractor dedicated to delivering innovative solutions that support our clients and the communities they serve.

People First. Mission Always.

We believe exceptional outcomes start with exceptional people. We are committed to building collaborative teams where talented professionals can grow, contribute, and make a meaningful impact.

About the Role

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.

Key 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 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.

Key indicators of success include:

• 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.

Location: Remote