Senior Agent Software Engineer

Agent runtime engineering at Cline, the open-source AI coding agent. The role is on the systems underneath the product rather than the editor surface: the runtime and orchestration layer, the tool interfaces agents call, the evals that measure whether they recover from failure, and the product surfaces that carry all of it. The posting is explicit that the work is agent-first - it asks for someone already opinionated about when to hand a task to an agent and when to do it directly, and who treats reviewing agent output as part of the job. It lists sandboxed execution, MCP, language servers, AST tooling and Git internals as the surrounding territory. Cline is model-agnostic by design and the codebase is open source.