Aerospace CNC Programmer & Setup — Mastercam

Datum Dynamics; Placentia (CA); On-site; USD 37,000 - 55,000; Full time

Job summary

Datum Dynamics is a growing aerospace precision machine shop located in Placentia, CA. We seek a motivated CNC programmer with 3‑axis foundations who wants to advance to multi‑axis machining and take on increasingly complex jobs.

You’ll program, set up, and optimize parts using Mastercam, working closely with ownership. The role emphasizes learning, ownership, and continuous improvement in a clean, quality‑focused shop.

Qualifications

• 2+ years of CNC programming experience.
• Experience with Mastercam.
• Strong understanding of CNC milling and machining fundamentals.
• Ability to independently set up and run CNC machining centers.
• Ability to read blueprints and understand GD&T.
• Experience selecting tooling and workholding.
• Strong mechanical aptitude and problem‑solving skills.
• Self-motivated with a desire to continuously improve.
• Aerospace machining experience is a plus but not required.

Responsibilities

• Program CNC mills using Mastercam.
• Set up and prove out new jobs.
• Read and interpret engineering drawings, GD&T, and customer specifications.
• Select tooling, workholding, and machining strategies.
• Optimize programs for cycle time, quality, and tool life.
• Troubleshoot machining and programming issues.
• Maintain organized setup documentation and program revisions.
• Collaborate with the production team to meet quality and delivery expectations.
• Continue developing programming skills with opportunities to learn advanced 5‑axis machining.

Skills

Strong mechanical aptitude

Problem-solving skills

Self-motivated

Willingness to learn

Tools

Mastercam

Job description

Datum Dynamics is a growing aerospace precision machine shop located in Placentia, CA. We seek a motivated CNC programmer with 3‑axis foundations who wants to advance to multi‑axis machining and take on increasingly complex jobs.

You’ll program, set up, and optimize parts using Mastercam, working closely with ownership. The role emphasizes learning, ownership, and continuous improvement in a clean, quality‑focused shop.