Senior CNC Machinist

Great-Hire; Buena Park (CA); On-site; USD 60,000 - 95,000; Full time

Benefits offered by this job

Room for growth

On the job training

Competitive pay and benefits

1st & 2nd shift positions

Job summary

Great Hire in Buena Park, California is seeking an experienced Senior CNC Machinist to operate and set up CNC mills and lathes, producing close-tolerance aerospace components. The role emphasizes accuracy, reliability, and collaboration with the QA team.

Ideal candidates will read GD&T drawings, set offsets, and inspect parts with precision tools, contributing to continuous process improvements and on-time production.

Qualifications

• Proven experience operating CNC mills and lathes in manufacturing.
• Ability to read and interpret drawings, GD&T, and work instructions.
• Capable of setting tool offsets and making program adjustments.
• Proficient with precision measuring tools like micrometers and calipers.

Responsibilities

• Set up and operate CNC mills, lathes, or other CNC equipment.
• Read and interpret engineering drawings and blueprints.
• Make offsets and adjustments to maintain dimensional accuracy.
• Inspect finished and in-process parts with precision measuring tools.
• Identify and troubleshoot machining issues and adjust accordingly.
• Follow machining processes, quality procedures, and safety rules.

Skills

Reading drawings & GD&T

CNC setup & operation

Precision measurement tools

CNC programming (not required)

CAM software Mastercam (not required)

Tools

Fanuc controls

Haas controls

Mazak controls

Okuma controls

Mastercam CAM software

Job description

Buena Park, United States | Posted on 08/21/2026

We are looking for an experienced CNC Machinist to join our team in Buena Park, California. This is a hands-on machining position supporting the production of precision components for the aerospace and defense industries.

While the position is titled Senior CNC Machinist , we are intentionally looking for a broad range of experience levels. The ideal candidate will have solid CNC machining experience and be comfortable working independently, but we encourage mid-career machinists who are ready to take the next step to apply.

The machinist will operate and set up CNC equipment to produce close-tolerance parts according to engineering drawings, specifications, and customer requirements. Attention to detail and a commitment to quality are especially important because of the precision requirements associated with aerospace and defense components.

Responsibilities

• Set up and operate CNC mills, lathes, or other CNC machining equipment.
  
• Read and interpret engineering drawings, blueprints, and work instructions.
  
• Make machine offsets and adjustments to maintain part quality and dimensional accuracy.
  
• Inspect finished and in-process parts using precision measuring equipment.
  
• Work with calipers, micrometers, gauges, and other inspection tools.
  
• Identify and troubleshoot machining issues and make appropriate adjustments.
  
• Follow established machining processes, quality procedures, and safety requirements.
  
• Maintain accurate production and inspection records.
  
• Work with supervisors, programmers, engineers, and quality personnel to resolve production issues.
  
• Maintain a clean, organized, and safe work area.
  
• Help identify opportunities to improve machining processes, quality, and efficiency.
  
• Support the production of precision components used in aerospace and defense applications.
  

Requirements

• Previous experience working as a CNC machinist in a manufacturing environment.
  
• Ability to read and understand engineering drawings and GD&T.
  
• Experience setting up and operating CNC machinery.
  
• Ability to make tool offsets and basic program adjustments.
  
• Proficiency using precision measuring instruments such as micrometers, calipers, and gauges.
  
• Experience with aerospace, defense, medical, or other precision manufacturing is a plus.
  
• Experience with CNC mills, lathes, or both is preferred.
  
• Familiarity with Fanuc, Haas, Mazak, Okuma, or similar controls is a plus.
  
• CNC programming experience is a plus but not required .
  
• Experience with CAM software such as Mastercam is a plus but not required .
  

Benefits

• - Excellent room for growth and on the job training
• - Competitive pay and benefits
• - 1st shift and 2nd shift positions available

Great Hire is an equal opportunity employer committed to recruiting, employing, retaining, promoting, terminating, and otherwise treating all employees on the basis of merit, qualifications, and competence. We do not discriminate on the basis of any trait or characteristic protected by applicable federal, state, or local laws.