Machinist

• The Machinist I is an entry-level CNC operator learning to safely run stable jobs on Master Machine's floor. This role loads programs, performs tool changes, inspects basic features per setup sheets, and builds the machining fundamentals needed to progress to Machinist II.
• This role is evaluated on two equally weighted dimensions:
  Competency (what you do) and Culture (how you do it).

Operate assigned CNC machines under supervision, following the setup sheet, safety procedures, and standard work so parts run to spec on stable jobs.

• Load programs and perform tool changes per the setup sheet and standard work
• Run stable, released jobs on CNC mills, lathes, or grinders under supervision
• Monitor cuts and stop the machine if something looks, sounds, or measures wrong

• Follow OSHA, LOTO, and Master Machine safety and PPE requirements at all times
• Inspect machines and tooling before use and flag anything unsafe before starting
• Report hazards, near-misses, and unsafe conditions immediately to the supervisor

Perform basic in-process inspections with calipers, micrometers, and indicators, and record results honestly on the traveler so every part has a defensible history.

• Read basic blueprints, notes, and tolerances to know what to check
• Use precision measurement tools (calipers, micrometers, indicators, height gauges) correctly
• Verify basic features per the setup sheet before running the next part

• Record measurements and production steps on the traveler accurately and completely
• Escalate out-of-tolerance parts or non-conformances per quality procedure
• Keep first-piece and in-process records legible and traceable back to the job

Build the machining fundamentals — G-code awareness, offsets, work holding, and 5S — needed to grow into Machinist II, and keep the cell clean and organized.

• Learn basic G-code, tool offsets, and work holding fundamentals from senior machinists
• Ask questions when a print, program, or setup sheet is not clear
• Complete assigned internal certifications (machine operation, OSHA onboarding, blueprint reading)
• Maintain a clean, organized work area following 5S standards
• Deburr, finish, and clean parts to required specifications before staging
• Provide a clean handoff at end of shift — machine, tools, and paperwork ready for the next operator

We win when our customers win.

Every part Master Machine ships goes into nuclear, defense, or critical‑infrastructure systems. Championing customer success at Machinist I means learning the fundamentals well enough that the parts you run help the customer succeed on the first shipment.

• Filter every operating decision through: does this help the customer succeed?
• Ask before assuming — a bad assumption at the machine reaches the customer as a defect
• Own the parts you run start-to-finish — including the paperwork
• Surface anything a customer or inspector might flag early, not after the part ships

Servant leadership, integrity, and transparency in all we do.

Serving first at Machinist I means leading by example on safety and honesty — wearing PPE, respecting LOTO, and telling the truth about what happened on a part, even when the answer is uncomfortable.

• Follow safety, LOTO, and quality procedures even when the schedule is tight
• Record travelers, first‑piece checks, and sign‑offs truthfully and completely
• Serve teammates by keeping tools, fixtures, and consumables ready for the next operator
• Raise print, program, or fixture issues early — before they become defects

We are becoming, and we are building, a great team.

The Machinist I is the newest teammate on the cell. Winning together means learning quickly, following the standard, and helping the shift succeed as one team — not one operator.

• Follow standard work and setup…