Senior Software Engineer, Infrastructure

Role overview Build and operate the infrastructure that launches, manages, and retires isolated environments where coding agents work on software projects. You’ll own systems from design through production operation, helping make agent sessions quick to start, safe to run, easy to inspect, and ready for engineering review.

Responsibilities - Improve how sandbox environments are provisioned, configured, isolated, monitored, and cleaned up. - Make preview environments more reliable and help diagnose setup failures and unsuccessful runs. - Design safeguards for permissions, secrets, network access, resource limits, and environment lifecycles. - Connect agent changes with code repositories, automated checks, and human review workflows. - Add instrumentation, alerts, and operational guides; use them to improve reliability and manage costs. - Work with product and engineering colleagues to turn customer and workflow problems into technical decisions.

Requirements - Experience building and operating production infrastructure for developer tools, cloud applications, CI systems, or similar products. - Understanding of isolation approaches such as containers or virtual machines, and the risks of running untrusted code. - Ability to build application systems around infrastructure, including APIs, job orchestration, state management, and repository integrations. - Skill diagnosing production issues with logs, metrics, or traces and using findings to improve system reliability. - Clear technical communication, practical judgment, and ownership of systems after launch.

Nice to have - Experience operating coding agents, browser based development environments, or per branch previews at scale. - Familiarity with Git hosting workflows, CI pipelines, dependency installation, and onboarding varied codebases. - Work optimizing startup times, resource use, or costs for short lived compute workloads. - Experience building infrastructure for security or compliance needs.

Benefits and work setup - Senior, full time role based in the San Francisco Bay Area or remote within the United States.