Senior Full-Stack Engineer: Secure Classified DevOps (TS/SCI)

Pop-Up Talent; Springfield (VA); On-site; USD 170,000 - 210,000; Full time

Job summary

Pop-Up Talent in the United States is seeking a seasoned Full-Stack Software Developer to design, build, and maintain mission-critical applications for a federal counterintelligence customer in a classified environment.

You will work across front-end, back-end, and data layers with React/ Angular/ Vue and Python/ Java, deploy containerized apps, implement Zero Trust, and develop secure DevSecOps pipelines per OWASP/NIST 800-53.

Qualifications

• Active TS/SCI clearance with a current CI Polygraph (within the last 5 years).
• U.S. Citizenship (required for clearance eligibility).
• BS in Computer Science or a related field.
• At least 8+ years of software development experience across the full stack.
• DevSecOps and CI/CD pipeline experience.
• Secure coding experience (OWASP, NIST 800-53).
• DoD 8140 compliance — CompTIA Security+ or equivalent.

Responsibilities

• Design, develop, and maintain full-stack applications in a classified environment.
• Build responsive front ends (React, Angular, Vue) and back-end services (Python, Java), and integrate the two.
• Deploy and manage containerized applications.
• Build and maintain DevSecOps and CI/CD pipelines for secure continuous delivery.
• Apply secure coding practices aligned to OWASP guidelines and NIST 800-53 controls.
• Architect and implement Zero Trust network and application design.
• Partner with program security officers, data engineers, and mission stakeholders to translate requirements into working software.

Skills

Full-stack development

Frontend frameworks

Python

Java

DevSecOps

CI/CD pipelines

Secure coding

NIST 800-53

DoD 8140

TS/SCI clearance

Education

BS in Computer Science

Tools

Terraform

Ansible

Kubernetes

Job description

Pop-Up Talent in the United States is seeking a seasoned Full-Stack Software Developer to design, build, and maintain mission-critical applications for a federal counterintelligence customer in a classified environment.

You will work across front-end, back-end, and data layers with React/ Angular/ Vue and Python/ Java, deploy containerized apps, implement Zero Trust, and develop secure DevSecOps pipelines per OWASP/NIST 800-53.