
Senior Software Engineer | Kimchi (Harness Team)
Cast AI is hiring a Senior Software Engineer for the Kimchi Harness team to design and implement harnesses that enable model planning, execution and evaluation. Responsibilities include architecting planner/executor/evaluator pipelines, managing agent memory and context, owning harness surface integrations (TUI, MCP, telemetry), and shipping end-to-end features. Strong production experience with Go or TypeScript, systems programming, database performance tuning, cloud (AWS/GCP/Azure) and Kubernetes, and observability/CI-CD practices are highlighted. Role is remote-first across listed Eastern European countries; the posting states Cast AI does not provide visa sponsorship. Salary range listed: €6,500–€9,000 gross.








