Senior CNC Machinist - Rubric & Quality Validation Expert

Obsidian; New York (NY); Remote; USD 34,000 - 83,000; Full time

Job summary

Obsidian is seeking experienced CNC machinists to author and validate grading rubrics for CNC machining work. You will bring production-floor judgment to determine if a machining approach would be approved for production, and clearly explain your reasoning.

The role focuses on creating objective, text-based rubrics and verification rationales for CAD models, stock, tooling, and machines like Haas VF-2. Strong English writing is essential.

Qualifications

• 5+ years of hands-on CNC machining experience.
• Strong production judgment — able to tell what would and wouldn't run safely on a real machine.
• Written English fluency (all deliverables are text-based).

Responsibilities

• Contribute to text-only, objective, verifiable rubrics for grading CNC machining solutions across provided CAD models and machining context (stock, machine, tooling).
• Write clear verification rationale for each criterion.
• Review sample solutions and explain pass/fail outcomes.

Skills

CNC machining

Production judgment

Written English fluency

Verifiable rubric writing

Tools

Haas VF-2

Maker Carver

Job description

Obsidian is seeking experienced CNC machinists to author and validate grading rubrics for CNC machining work. You will bring production-floor judgment to determine if a machining approach would be approved for production, and clearly explain your reasoning.

The role focuses on creating objective, text-based rubrics and verification rationales for CAD models, stock, tooling, and machines like Haas VF-2. Strong English writing is essential.