Machinist-3rd Shift

Arch Precision, LLC•Earth City, MO

About The Position

We are seeking a highly skilled, detail-oriented Machinist to join the production team. The machinist handles end-to-end setup of complex jobs on multi-axis CNC and rotary transfer machines, ensuring the first part meets quality standards before handing the process over to operators. The role works the third shift, Monday through Thursday, from 7:30 p.m. to 6:00 a.m.; weekends are not required.

Requirements

  • Minimum of 3–5 years of CNC setup experience.
  • Strong understanding of G-code and M-code, with the ability to edit programs at the controller.
  • Expert-level skill with precision measuring instruments, including bore gages, height gages, and optical comparators.
  • Strong shop math skills, including trigonometry and geometry for calculating speeds, feeds, and coordinates.
  • Ability to read complex industrial drawings and understand tight tolerances.
  • Ability to lift up to 50 lbs. and stand for extended periods.
  • Ability to work in a fast-paced manufacturing environment with exposure to noise, oil, and metal shavings.
  • Strict adherence to PPE and safety protocols.
  • Problem-solving ability and composure when troubleshooting difficult setups or tool paths.
  • Precision-focused approach and ability to communicate technical issues clearly to engineers and entry-level operators.

Nice To Haves

  • Fanuc experience.

Responsibilities

  • Interpret blueprints, GD&T, and setup sheets to prepare machines for production, including installing tools, loading programs, and setting work offsets.
  • Run the initial part and conduct a comprehensive inspection using micrometers, calipers, and CMM equipment.
  • Review G-code and M-code for potential errors, and perform dry runs and single-block execution to check tool paths.
  • Select, assemble, and preset cutting tools and holders; monitor tool wear and adjust offsets or replace tools to maintain tolerances.
  • Collaborate with Programming and Engineering teams to improve cycle times, tool life, and fixture stability.
  • Guide machine operators on part loading, basic offset adjustments, and quality checks after setup is finalized.
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