Cast AI

AI

SeniorAIEngineerHarnessEngineering(Kimchi)

€7–9k European Union Remote Friendly
The Brief

“Senior AI Engineer - Harness Engineering (Kimchi) at Cast AI. Skills: AI agent harness, Long-horizon execution, TypeScript, Go. Build agent harness. Ship hooks, gates, compaction”

What You'll Achieve.

Shipped major harness feature; Added constraints to AGENTS.md; Improved reliability metric; Formed opinions on harness load-bearing

Industry & Context.

AI
Problems you'll solve

Engineer solutions to failures; Intercept and reinject goals; Crash recovery; Stuck detection

Eligibility Requirements

Residing in specific European countries, 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

Used AI coding agents in anger, Opinions about Claude Code, Codex, OpenCode, Cursor, Think in harness terms

What You'll Do.

Own long-horizon execution

Architect planner/executor pipelines

How You'll Work.

Team & Collaboration

Collaborate with global team

Process & Methodology

Drive features end-to-end

Free ATS check

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