Sr. Software Developer III with Security Clearance

As a Sr. Full Stack .NET Developer III, you will design, build, and deliver secure, reliable software solutions for a highly visible, mission-critical customer supporting national-level operations. You will be part of a program focused on rapidly delivering high-quality software while maintaining the highest standards of security, resilience, and operational excellence. We know that you can’t have great technology services without amazing people. At MetroStar, we are obsessed with our people and have led a two-decade legacy of building the best and brightest teams.

Because we know our future relies on our deep understanding and relentless focus on our people, we live by our mission: A passion for our people. Value for our customers. If you think you can see yourself delivering our mission and pursuing our goals with us, then check out the job description below!

What you’ll do: Troubleshoot and resolve production issues in a timely and effective manner
Work as part of a collaborative, high-performing team delivering technical solutions for mission-critical federal government systems
Support O&M and design, develop, and modernize custom enterprise applications
Apply secure coding practices across all phases of development
Participate in code reviews and Agile ceremonies (planning, stand-ups, retros, etc.)
Support and contribute to CI/CD pipelines and automated deployments
Troubleshoot and resolve production issues in a timely and effective manner
Communicate technical decisions and solutions clearly to both technical and non-technical stakeholders
Establish and maintain a high level of customer trust and confidence through technical expertise and professionalism
Use creativity and innovation to deliver solutions that meet customer and mission needs What you’ll need to succeed: Active Top Secret with current or previously held SCI access.

Bachelor’s degree in Computer Science or Software Engineering preferred; relevant experience may substitute. Certification meeting DoD 8140 (e.g., Security+ or higher). Required certification: Azure Developer Associate, AWS Developer Associate, or recent/relevant software development certification.
10+ years of professional software development experience building, testing, and maintaining enterprise applications in mission-critical environments. Expertise in C#, .NET, .NET Framework, Entity Framework, and development using ASP.NET (e.g., WebForms, MVC, REST APIs).

Front-end experience with TypeScript, JavaScript, HTML, CSS, Node.js, and Angular and/or React. Back-end experience with database development and administration (e.g., SQL Server, T-SQL).. Experience with source code management tools (e.g., Azure DevOps, GitLab, or GitHub), CI/CD pipelines, and containerization using Docker. Strong understanding of Windows Server, PowerShell scripting, IIS hosting, Kerberos, and OIDC authentication. Ability to contribute immediately with minimal ramp-up in a dynamic, mission-critical environment.