As agents take on bigger jobs, the infrastructure around them matters more. Docker’s answer is to give every agent a strong boundary, make its environment and authority reproducible, and let the work run where it makes sense, from a developer’s laptop to the cloud. The Docker AI Substrate team brings that foundation to the enterprise: the largest companies in the world, running agents at scale, with the security, reliability, and control they expect from any critical system. We are a small, senior team at the start of that work. As a Staff Software Engineer here, you will shape the architecture, build the core systems, and run what you build.