Senior CNC Machinist

Great Hire; Buena Park (CA); On-site; USD 70,000 - 95,000; Full time

Job summary

Great Hire in Buena Park, California seeks a Senior CNC Machinist to join our precision manufacturing team. You will operate and set up CNC mills and lathes to produce close-tolerance aerospace and defense components.

We welcome mid-career machinists ready to advance, with responsibility for reading engineering drawings and performing offsets, with strict quality and safety standards. Excellent training, room to grow, and competitive compensation are offered.

Qualifications

• 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.

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.

Skills

Blueprints & GD&T

CNC machining

Precision measurement

Independent work

Problem solving

Tools

Mastercam (CAM)

Fanuc/Haas/Mazak/Okuma controls

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.

• 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.