Cast AI
AI
SeniorAIEngineerHarnessEngineering(Kimchi)
“Senior AI Engineer - Harness Engineering (Kimchi) at Cast AI. Skills: Agent harness, Long-horizon execution, TypeScript, Go. Build and evolve agent harness. Ship hooks, permission gates, context compaction”
What You'll Achieve.
Shipped at least one major harness feature end-to-end; Added constraints to AGENTS.md based on failures; Improved measurable reliability metric; Formed opinions about harness load-bearing and dead weight
Industry & Context.
Engineer solutions to agent mistakes; Intercept and reinject goals; Crash recovery; Stuck detection
Residing in Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine, Background check may be conducted, No visa sponsorship/work permit provided
What They're Looking For.
Must Have
TypeScript or Go in production, Comfort moving between TypeScript and Go
Nice to Have
Experience with AI coding agents in anger, Opinions about Claude Code, Codex, OpenCode, Cursor, Think in harness terms
What You'll Do.
Build and evolve agent harness
Own long-horizon execution
Architect planner/executor/evaluator pipelines
Manage agent memory and context
How You'll Work.
Team & Collaboration
Collaborate with global team of cloud experts and innovators
Process & Methodology
Drive features end-to-end, Design, build, ship, measure, iterate
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