Cyber Security Engineer / Information Systems Security Engineer (ISSE)

Who We Are We exist to unlock human potential. Too often, AI drains it—drains budgets, drains energy resources, drains ownership of data. OpenTeams was founded to change that. We build AI that empowers. Our models are energy-efficient, cost-effective, and fully yours. Our ethos is open source.

That means freedom, trust, and accountability are built into every line of code. We reinvest 3% of our profits back into the open-source community, because we believe tech is most powerful when it serves everyone. At our core, we value freedom, teamwork, accountability, and uncompromising quality.

If you want to challenge the status quo, and shape tools that set people free, OpenTeams is the place to do it.

Location: Remote (US) with travel to customer sites as required (Washington Metro Area preferred) Employment Type: Full-time Clearance: Active TS/SCI required Role Summary The Cyber Security Engineer / ISSE owns the security architecture and accreditation posture of the depot.

This role leads RMF activities, embeds security controls into engineering workflows, and serves as the primary security interface with government assessors and authorizing officials.

Responsibilities

Lead RMF activities: control selection, implementation evidence, POA&M management, and ATO support Design and implement supply chain security controls: SBOM generation, artifact signing, vulnerability scanning, and provenance attestation Perform threat modeling and security reviews of depot architecture and workflows Integrate security tooling into CI/CD pipelines and enforce policy gates Support cross-domain and classified environment requirements, including secure transfer procedures Interface with government ISSMs, assessors, and authorizing officials Required Qualifications Active TS/SCI clearance Experience with Xacta, eMASS, or CSAM 6+ years in cyber security or ISSE roles supporting DoD or IC systems Hands-on experience with RMF, NIST 800-53, and eMASS or equivalent Experience with DevSecOps toolin