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# Sr. Software Developer III (6681)

- **Company:** MetroStar Systems
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Salary:** $184,000.0 - $225,000.0
- **Contract:** Permanent contract
- **Skills:** ASP.NET, HTML, JavaScript (Programming Language), .NET Framework, Agile Methodology, Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), Cascading Style Sheets (CSS), Code Review, Database Development, Entity Framework, Github, Internet Information Services (IIS), Kerberos (Protocol), Microsoft SQL Server, Windows Servers, Model View Controller (MVC), Node.Js, OpenID, Windows PowerShell, Software Engineering, Transact-SQL, TypeScript, Enterprise Software Applications, ReactJS, Backend, Gitlab, AngularJS, Information Technology, Webforms, Deployment Automation, Front End Software Development, Restful APIs, Software Version Control, Docker
- **Published:** July 24, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9056338/sr-software-developer-iii-6681

## About the Role

* 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.

## Description

* 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


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