Full Stack Developer

Bigbear.ai • Suitland, MD

20d • Onsite

About The Position

BigBear.ai is establishing a specialized, high-impact development team focused on creating cloud-native applications crucial for mission operations. This role offers high visibility and a direct influence on outcomes within a classified environment. The ideal candidate will possess strong Python expertise, advanced frontend skills, and a disciplined engineering approach to building secure, maintainable systems under operational pressure.

Requirements

• Active TS/SCI clearance.
• 5+ years of hands-on software development experience or equivalent demonstrated capability.
• Proficiency in Python backend development (Django, FastAPI, or similar; async/ASGI; modern Python).
• Experience in frontend development with React, Next.js, or equivalent for production systems.
• Experience with REST API design, including Backend-for-Frontend patterns and strong schema validation practices.
• Expertise in PostgreSQL schema design, optimization, migrations, and data loading.
• AWS experience in delivering and operating applications, including classified partitions/regions.
• Experience with Terraform (Infrastructure-as-Code).
• Experience with Keycloak and/or OIDC/SAML/CAC-PIV authentication integrations.
• Experience with secure development in STIG-hardened, FIPS-validated environments.
• Familiarity with GitLab CI/CD and Git-based workflows.
• Experience with DevSecOps scan remediation (SAST/DAST/SCA/SBOM/container scanning).
• Daily use of AI-assisted development tools.

Nice To Haves

• Experience building GenAI features into applications (RAG, LLM integration, embeddings/search).
• Experience with legacy system/data migration into modern cloud-native architectures.
• Experience with Kubernetes/EKS and Helm.
• Experience with hardened container supply chains and FIPS-validated image pipelines.
• Practical application of NIST 800-53 controls to software design.
• Experience with multi-classification / cross-partition deployment architectures.
• Experience supporting IC or DoD mission systems.

Responsibilities

• Design, build, and deliver end-to-end applications, including database schema, data migrations, API layers, and user interfaces for mission users.
• Support an established platform while also developing pilot solutions and MVPs for new requirements.
• Extend Django-based API gateways and services using modern API patterns, including Backend-for-Frontend.
• Build and refine React/Next.js interfaces and dashboards for operational workflows.
• Design PostgreSQL schemas, tune queries, and develop migrations for modernizing legacy data.
• Integrate authentication/authorization using Keycloak (OIDC/SAML), including RBAC and secure session/token handling.
• Deploy and operate applications across multiple AWS partitions and classification levels.
• Contribute to infrastructure-as-code (Terraform) and CI/CD (GitLab) within a DevSecOps pipeline.
• Utilize AI-assisted development tooling as a standard part of the daily workflow to enhance velocity and quality.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed