Sr. Software Engineer - TS/SCI with Security Clearance

Zachary Piper Solutions is seeking a Sr.

Software

Engineer - TS/SCI for a mission-focused technology organization supporting national security and advanced systems in the Reston, VA area. The Sr.

Software

Engineer - TS/SCI role is an onsite position working in highly secure environments on complex, high-impact platforms. The Sr.

Software

Engineer - TS/SCI will design and build full stack applications while driving DevOps best practices to support scalable, reliable, and secure software delivery. An ideal candidate brings deep software engineering expertise, hands-on DevOps experience, and a background working within cleared environments.

Responsibilities of the Sr.

Software

Engineer - TS/SCI:

• Design, develop, and maintain full stack applications using modern front-end and back-end technologies.
• Build and support CI/CD pipelines to enable automated, secure, and reliable deployments.
• Collaborate with DevOps, infrastructure, and security teams to implement DevSecOps best practices.
• Develop and manage cloud and on-prem infrastructure using Infrastructure as Code (IaC) tools.
• Support containerized applications using Docker and Kubernetes in classified environments.
• Participate in system architecture, design reviews, and technical decision-making.
• Troubleshoot and resolve complex issues across the application stack and infrastructure layers.
• Ensure applications meet performance, reliability, and security requirements.

Qualifications of the Sr.

Software

Engineer - TS/SCI:

• Active TS/SCI clearance is required.
• 7+ years of professional software engineering experience.
• Strong full stack development experience with languages such as Java, Python, JavaScript/TypeScript, or similar.
• Hands-on DevOps experience with CI/CD tools such as Jenkins, GitLab CI, or GitHub Actions.
• Experience with containerization and orchestration tools including Docker and Kubernetes.
• Proficiency with cloud platforms (AWS, Azure, or GCP), preferably in secure or regulated environments.
• Strong understanding of Linux systems, networking concepts, and security best practices.
• Ability to work collaboratively in a fast-paced, mission-critical environment.

Compensation for the Sr.

Software

Engineer - TS/SCI includes:

• Salary range: $190,000 - $245,000
• Comprehensive benefits package including medical, dental, vision, 401(k), PTO, Sick Leave as required by law
• This job opens for applications on 04/17/2026. Applications for this job will be accepted for at least 30 days from the posting date.