Clera

Founding Harness Engineer

Clera
Apply
1 day ago

Responsibilities

  • Design and build the runtime for AI-agent context gathering, action decisions, tool selection, approval, and task completion.
  • Write and refine system prompts to encourage useful initiative while limiting noisy or risky behavior.
  • Build evaluation and regression test harnesses for real tasks, tool use, failure cases, and prompt changes.
  • Improve reliability across long-running work, interruptions, and retries.
  • Implement safety boundaries including approval gates and multi-tenant data separation.
  • Work with the founding team and early users to shape the product and make technical tradeoffs across prototyping and production.

Requirements

  • Production experience shipping tool-using LLM agents beyond demos or thin prompt wrappers.
  • Hands-on experience designing, testing, and improving system prompts.
  • Experience building evaluation and regression test harnesses for LLM or agent behavior.
  • Understanding of safe tool execution, approval workflows, and multi-user data risks.
  • Strong ownership across prototyping and production, with the ability to explain technical tradeoffs.
  • Experience with LLM agents, tool use, evaluation, and prompt engineering.

Benefits

  • Founding equity is available, with percentage and vesting details to be determined.
  • On-site role in San Francisco; candidates should be based in the Bay Area or willing to relocate.

Categories

Contact me