Machinist (CNC Mill Machinist)

CNC Mill Machinist sets up, programs, and operates computer numerical control (CNC) milling machines to shape metal or plastic parts to exact engineering specifications

Core Responsibilities

• Setup & Operation: Mount raw materials, secure holding fixtures, and set up cutting tools, work offsets, and parameters on 3-axis, 4-axis, or 5-axis CNC mills.
• Blueprint & GD&T Interpretation: Read and analyze technical drawings, CAD files, and route instructions, applying Geometric Dimensioning and Tolerancing (GD&T) principles.
• Programming & Troubleshooting: Write or edit G-code/CAM programs at the machine or desk to optimize cycle times, feed rates, and cutting speeds.
• Quality Control: Inspect finished parts using precision tools such as micrometers, calipers, depth gauges, and bore gauges to maintain tight tolerances.
• Maintenance & Safety: Perform routine preventive maintenance on machine tools, replace worn inserts, and adhere strictly to shop safety protocols.

Required Skills & Qualifications

• Education: High school diploma or GED; technical trade school, vocational training, or an apprenticeship is commonly preferred.
• Experience: Typically ranges from 5+ years of hands-on experience setting up and operating CNC milling equipment.
• Technical Skills:
• Proficiency with measurement tools (calipers, micrometers)
• Basic shop math, geometry, and trigonometry
• G-code familiarity and CAD/CAM software knowledge
• Certification options include credentials from the National Institute for Metalworking Skills (NIMS).
• Bilingual a plus