Full-Stack Engineer (TS/SCI) - Mission-Critical Apps

Worky; Springfield (VA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

401K with company match

Health, vision, dental insurance

Career growth and LEAP program

Job summary

SPHINX is seeking a contingent Full-Stack Software Developer to design, develop, and maintain mission-critical applications for a federal counterintelligence customer in a classified environment. You will work across front-end interfaces, back-end services, and data layers, delivering secure, scalable tools.

Start date TBD and position contingent on contract award. Ideal candidates have TS/SCI with CI poly, 8+ years in full-stack development, and proficiency with Docker/Kubernetes, DevSecOps,

Qualifications

• 8+ years of software development experience across the full stack.
• Experience with container orchestration using Docker and Kubernetes.
• DevSecOps and CI/CD pipeline experience.
• Secure coding experience aligned to OWASP and NIST 800-53.
• DoD 8140 compliance — 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).
• Deploy and manage containerized applications.
• Build and maintain DevSecOps and CI/CD pipelines for secure delivery.
• Apply secure coding practices aligned to OWASP and NIST 800-53 controls.
• Architect and implement Zero Trust network and application design.
• Collaborate with security officers and data engineers to translate requirements into working software.

Skills

Full-stack development

DevSecOps

CI/CD pipelines

Secure coding

Security+ / DoD 8140

Education

BS in Computer Science or related field

Tools

Docker

Kubernetes

Job description

SPHINX is seeking a contingent Full-Stack Software Developer to design, develop, and maintain mission-critical applications for a federal counterintelligence customer in a classified environment. You will work across front-end interfaces, back-end services, and data layers, delivering secure, scalable tools.

Start date TBD and position contingent on contract award. Ideal candidates have TS/SCI with CI poly, 8+ years in full-stack development, and proficiency with Docker/Kubernetes, DevSecOps,