Principal Harness Engineer
virtual vocationsDenver (CO)
Principal Harness Engineer
Posted today
virtual vocationsDenver (CO)
SENIORITY
Lead
About the role
Owning the development of harness subsystems, the full-time Principal Harness Engineer will design, build, and support core components to ensure AI coding agents produce high-quality outputs while working remotely from Bulgaria.
Key responsibilities:
Design and deploy core components of the harness, including guides and feedback loops, to enhance AI-generated outputs
Establish quality gating and release criteria for agent-produced work, defining authority boundaries and escalation rules
Collaborate with product and platform teams to translate specifications into enforceable engineering controls
Required qualifications:
Bachelor's or Master's in Computer Science or related field, or equivalent experience in software architecture and development
Extensive experience in large codebases with a strong foundation in architecture, design, and testing
Hands-on experience with AI coding agents and familiarity with their strengths and weaknesses
Proven ability to build engineering tooling, including CI/CD pipelines and static analysis tools
Experience with quality-gating processes and defining release criteria to maintain engineering standards
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
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Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.