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Principal Harness Engineer

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Location: Remote
Compensation: To Be Discussed
Reviewed: Fri, Oct 30, 2026
This job expires in: 29 days

Job Summary

To support a cutting-edge engineering team, the full-time Principal Harness Engineer will design and deploy core components that enhance AI coding agents' output quality while working remotely from Bulgaria.

Key responsibilities
  • Design, build, and support harness components that ensure production-grade engineering from AI models
  • Own and evolve feedforward guides and quality gating processes to standardize agent outputs
  • Establish testing infrastructure and feedback mechanisms to ensure AI-generated outputs meet quality and safety standards
Required qualifications
  • Bachelor's or Master's in Computer Science or related field, or equivalent commercial experience in software architecture and development
  • Extensive experience with AI coding agents and large, complex codebases, with a strong focus on testing and maintainability
  • Proven ability to build engineering tooling, including CI/CD pipelines and static analysis tools
  • Experience with quality-gating processes and defining release criteria for engineering standards
  • Knowledge of security considerations unique to autonomous agents and experience with consumer/contract testing approaches

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