Mid-Senior Full Stack Developer (React, API, Kubernetes)

About the role

CACI is hiring a Mid-Senior Full Stack Developer for its Clairvoyant program, based in Chantilly. You will design and build the main interface between the platform and its customers: a sophisticated API layer and a modern web UI that delivers real-time data to third-party partners. The work takes place in a hardened, AWS-based, Kubernetes-native environment with strict government security requirements. The position requires TS/SCI clearance with polygraph and offers up to 10% continental US travel.

Key responsibilities

• Build responsive web applications with React that visualize complex, real-time data sets for external customers.
• Design and maintain RESTful or GraphQL APIs supporting third-party integrations at scale.
• Implement OAuth2, OIDC and mTLS, and ensure code meets DISA STIG and OWASP standards.
• Drive the full SDLC from agile requirements through automated CI/CD deployment on Kubernetes.
• Conduct code reviews, guide junior developers and act as subject matter expert for third-party API integration.

Required profile

• TS/SCI clearance with polygraph.
• Bachelor's degree in Computer Science or related field, or equivalent experience.
• 5+ years (mid-level) or 10+ years (senior-level) of full-stack software engineering experience.
• Ability to travel up to 5%.

Required skills

• Advanced JavaScript/TypeScript and React, including Redux and Context API.
• APIs with Node.js, Python (FastAPI/Flask) or Java (Spring Boot).
• Docker, GitLab CI/CD, Helm and Kubernetes.
• PostgreSQL, Elasticsearch, Redis; desired: D3.js or Recharts, GraphQL federation, AWS (ECS/EKS, API Gateway, CloudFront, RDS).

What we offer

• Proposed pay range of $98,500-$206,800, depending on location, experience and skills.
• Healthcare, wellness, financial, retirement, family support, continuing education and time-off benefits.
• Flexible time off and learning resources.