Secret-Cleared Software Developer - C#/.NET

ECS; Stafford (VA); On-site; USD 70,000 - 85,000; Full time

Benefits offered by this job

Standard federal employment benefits

Job summary

ECS Federal LLC in Stafford, VA is seeking a Software Developer (Secret Cleared) to design and implement testable code using C#, HTML/Blazor, and Entity Framework for mission-critical law‑enforcement applications.

The role emphasizes unit and integration testing, participation in Agile sprint ceremonies, and collaboration within a team to deliver data-intensive software with RESTful APIs and CI/CD pipelines.

Qualifications

• US citizen with an active Secret clearance.
• 1+ year of software development experience.
• Experience with C# and .NET.
• Experience developing unit tests with NUnit or xUnit.
• Relational database design/development with SQL Server.
• Experience developing web-based apps with HTML/CSS.
• Experience building or consuming RESTful APIs.
• Experience on an Agile team (Scrum/XP/Kanban).
• Knowledge of CI/CD tools such as Azure DevOps/Jenkins/GitHub.
• Strong interpersonal, communication, and organizational skills.
• Attention to detail and troubleshooting ability.
• Desire to work collaboratively in a team environment.

Responsibilities

• Design and develop testable code using C#, HTML, Blazor, and Entity Framework.
• Develop and maintain unit and integration tests.
• Participate in Agile sprint planning, retrospectives, and sprint demos.

Skills

Secret clearance

C# / .NET

Unit testing (NUnit / xUnit)

SQL Server

HTML / CSS

RESTful APIs

Agile (Scrum / Kanban)

CI/CD tools

Interpersonal skills

Attention to detail

Team collaboration

Tools

Azure DevOps

Jenkins

GitHub

Job description

ECS Federal LLC in Stafford, VA is seeking a Software Developer (Secret Cleared) to design and implement testable code using C#, HTML/Blazor, and Entity Framework for mission-critical law‑enforcement applications.

The role emphasizes unit and integration testing, participation in Agile sprint ceremonies, and collaboration within a team to deliver data-intensive software with RESTful APIs and CI/CD pipelines.