MDA Principal Advance Software Engineer

LCAT: ENG IV
GovSG is looking for a proven Principal Software Engineer to join our team! In this role you will provide support to the Missile Defense Agency Next Generation Software Office to accelerate and modernize the development, integration, and delivery of resilient and secure Missile Defense System software.

This is an on-site position in Huntsville, AL.

Position Duties:

Provide technical and engineering analysis to support development of on-demand and cloud-based software for system of system development, integration, and testing.

• Other duties as assigned

Position Required:

• Masters degree in a STEM field with 12+ years working on missile defense-related or other complex, large DoD program/project.
• Design, development, and management of software libraries and Cloud-based software architectures and requirements.
• Experience in hardware in the loop and cloud-based testing to support software development and delivery.
• Experience in management and review of application programming interfaces and interface control documents and enabling software utilized in Cloud-based and HWIL environments.
• Experience in artificial intelligence development and tooling and agentic operations.
• Ability to works independently, as a team member, or leading teams/ tasks, applying engineering rigor to solve engineering/ scientific problems.
• Cloud and Containerization: Practical experience with software containerization concepts (e.g., Docker, Kubernetes, AWS, Azure) and migrating legacy enterprise applications to cloud-native architectures.
• Agile and DevSecOps: Strong working knowledge of Agile and Lean software development principles, particularly within a secure DoW DevSecOps framework.
• Infrastructure as Code (IaC): Knowledge of or direct experience deploying IaC tools (e.g., Terraform, Ansible) to establish reproducible, auditable, and secure cloud environments.
• Experience using modern configuration management and version control platforms (e.g., Git) to enforce policy-as-code, baseline management, and compliance configurations.
• Top secret clearance or the ability to qualify for one.

Salary:

$145,000-$165,000. Actual compensation offered to candidate may vary from posted hiring range based upon geographic location, work experience, education, and/or skill level.

Why You’ll Want to Work at GovSG:

• Competitive pay and benefits, including PTO and company matched 401k
• Development opportunities through comprehensive training suite
• Ability to make an impact supporting the warfighter
• Opportunities to engage with the community through volunteering

The above description reflects the details considered necessary to describe the principal functions of the job and should not be construed as a detailed description of all the work requirements that may be performed in the job.

GovSG is an Equal Opportunity Employer, including Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, pregnancy, sex, sexual orientation, national origin, genetic information, physical or mental disability, military service, protected veteran status, or any other characteristic protected by applicable federal, state and local law. Know your Rights: If you would like more information, please visit

GovSG participates in E-Verify.