Senior Software Engineer, Sandboxes (EU or East Coast Preferred)
Core
Building the runtime for AI coding agents to run safely on developer machines via disposable, isolated microVM sandboxes.
Role type
Senior Software Engineer (Infrastructure/Runtime)
Builds
Isolated microVM sandboxes with their own Docker daemon, filesystem, and network for AI agent workloads.
Domain
Developer tools / AI Agents / Virtualization
Deliverable
production ML models | infrastructure
Required skills
Building secure isolated runtime environments (sandboxes, containers, VMs), shipping infrastructure at scale, reasoning about isolation and security boundaries, driving architecture and technical strategy, mentoring engineers, open source engagement
Preferred skills
Experience with agentic software development ecosystem, familiarity with MCP (Model Context Protocol), cross-platform development (macOS, Windows, Linux)
Technologies
Docker, microVMs, Docker daemon
Responsibilities
Design and lead improvements to the sandboxes product for agent integration and workflows, investigate and resolve correctness/performance/stability issues in the agent integration layer, drive reliability of sandbox creation/session management/teardown, collaborate on architecture evolution, mentor engineers, engage with open source communities, participate in on-call rotations
Seniority
Senior, hands-on IC with technical leadership