Forward Deployed Site Reliability Engineer - TS/SCI (Full Scope Poly)

Twenty was founded to change that, by making our adversaries think twice before they attack us. Our vision is American and allied primacy in cyberspace—a future where they cannot contest us, deterrence is assured, and the free world remains secure.

You'll be our eyes, ears, and hands on the ground at a government customer site, ensuring the reliability and performance of Twenty's mission-critical platform running in a restricted, air-gapped AWS environment. This role sits at the intersection of deep technical ownership and customer-facing engineering: you'll define how we measure reliability, lead incident response in a constrained environment, and serve as the primary technical link between what's happening on-site and the engineering team back in Arlington. You'll work closely with the DevSecOps engineer to ensure the platform operates within government security and compliance requirements, and with product engineers to translate operational reality into actionable feedback. You'll report directly to the VP of Engineering.

What you'll do:

• Define, track, and report on SLIs and SLOs for platform services running in the customer environment.
• Use error budgets to drive reliability conversations with the Arlington engineering team, translating operational data into prioritized engineering work.
• Identify and eliminate toil: build automation for repetitive operational tasks within the constraints of the secure environment.
• Conduct post-incident reviews, own root cause analysis, and drive durable fixes in partnership with the engineering team.

Full details and application on the official Twenty careers page.