R&D DevSecOps Engineer

Rackner is seeking a Software/AI Developer & DevSecOps Engineer.  R&D to build mission-focused applications, AI-enabled development tools, and secure software-delivery pipelines for government and defense customers.
This is a hands-on role spanning software engineering, generative AI, application modernization, and DevSecOps. You will develop working software while creating the controls needed to use AI coding agents safely in secure government environments.

• →Build backend services, APIs, data workflows, and AI-enabled applications.
• →Develop model-agnostic coding agents and LLM workflows with human approval, prompt history, auditability, and controlled tool access.
• →Enforce architecture, UX, cybersecurity, testing, and deployment standards through automated policies and CI/CD controls.
• →Generate and maintain technical documentation, architecture diagrams, API documentation, and software bills of materials.
• →Use AI-assisted analysis to assess and modernize application portfolios through replatforming, refactoring, retirement, preservation, or API wrapping.
• →Integrate human- and AI-generated code into automated quality, functional, security, accessibility, and compliance testing.
• →Build hardened AI development environments using approved tools, isolated execution, restricted permissions, and secure containers or virtual machines.
• →Develop Platform One-compatible workflows that enforce Iron Bank images, approved cloud services, and Party Bus deployment requirements.
• →Connect user feedback, behavior telemetry, logs, metrics, and platform context to agents that identify issues and prepare reviewed pull requests.
• →Build platform-security automation that finds vulnerabilities and configuration risks, recommends fixes, and produces compliance evidence.
• →Collaborate with software, platform, cybersecurity, and mission teams to move R&D prototypes toward operational use.

• Strong software development experience, particularly with Python.
• Experience building backend services, APIs, integrations, or data-driven applications.
• Experience with generative AI, LLM applications, coding agents, or AI-assisted software development.
• Experience with DevSecOps, CI/CD, cloud-native development, or platform engineering.
• Familiarity with Docker, Kubernetes, Git, automated testing, security scanning, and infrastructure-as-code.
• Understanding of application architecture, secure coding, code review, debugging, and software supply-chain security.
• Ability to independently take an evolving technical problem from concept through implementation and demonstration.
• S. citizenship and the ability to obtain and maintain a government security clearance.

• Active Secret clearance or higher.
• Experience with Platform One, Party Bus, Big Bang, Iron Bank, or DoD software factories.
• Experience with OpenCode, Codex, Claude Code, LangGraph, LangChain, LlamaIndex, or similar agentic-development tools.
• Experience with FastAPI, Prefect, Temporal, PostgreSQL, vector databases, or event-driven systems.
• Experience with AWS, Azure, Helm, Terraform, GitLab CI, GitHub Actions, or Argo CD.
• Familiarity with NIST SP 800-53, RMF, DISA STIGs, CMMC, cATO, or other DoD cybersecurity requirements.
• Experience with SAST, DAST, SBOM generation, dependency scanning, observability, or automated remediation.
• Experience modernizing legacy systems or developing software for classified, disconnected, or constrained environments.
• Experience supporting defense, C2, ISR, mission planning, autonomy, or other national security missions.

Success means delivering software and AI-assisted engineering workflows that are functional, secure, explainable, maintainable, and deployable. You will help shorten the path from mission need to operational capability while ensuring AI-generated changes remain controlled, tested, traceable, and subject to human review.

Rackner builds mission-critical systems for the U.S. government across software engineering, AI/ML, DevSecOps, cloud platforms, distributed systems, and application modernization.

Rackner is an equal opportunity employer and considers all qualified applicants without regard to any legally protected characteristic.