CNC Mill Machinist

APM Manufacturing; Orange (CA); On-site; USD 48,000 - 62,000; Full time

Benefits offered by this job

Dental insurance

Employee Assistance Program

Flexible Spending Account

Health insurance

Health Savings Account

Life insurance

Paid time off

Professional development assistance

401(k) with Employer Match

Tuition reimbursement

Vision insurance

Job summary

APM Manufacturing is seeking a Senior CNC Mill Machinist III in California to lead complex CNC milling operations for aerospace components. The role requires minimal supervision, high-precision tolerance knowledge, and mentorship of junior machinists.

You will interpret drawings, set up tooling, perform FAI and inspections per AS9100, and drive process improvements with engineering. Strong GD&T and multi-axis experience are essential.

Qualifications

• 5–8+ years of milling experience in a precision manufacturing environment; aerospace experience strongly preferred
• High school diploma or GED required; technical degree or apprenticeship preferred
• Proven ability to interpret complex drawings and GD&T, and work with tight tolerances (±0.0002”–±0.0005”)

Responsibilities

• Set up, operate, and optimize complex CNC/multi-axis milling machines.
• Interpret engineering drawings, GD&T, and specifications.
• Develop setups, select tooling, and fixture designs as needed.

Skills

CNC Milling

GD&T

Blueprint interpretation

Mentoring

Education

High school diploma or GED

Technical degree or apprenticeship

Tools

Fanuc CNC

Haas CNC

Mazak CNC

G-code programming

Job description

Position Summary:

$35-$45/hr.

The CNC Mill Machinist III is a senior-level machinist responsible for complex CNC and/or manual milling setups, advanced troubleshooting, and manufacturing high-precision aerospace components. This position operates with minimal supervision and serves as a technical resource and mentor to junior machinists while ensuring compliance with aerospace quality and regulatory standards.

Essential Duties and Responsibilities:

• Independently set up, operate, and optimize complex CNC and/or multi-axis milling machines.

• Interpret complex engineering drawings, blueprints, and GD&T requirements.

• Develop setup strategies, select tooling, and design/modify fixtures as needed.

• Perform first article inspections (FAI), in-process, and final inspections in accordance with AS9100 and customer specifications.

• Hold tight tolerances (±.0002”–±.0005” typical in aerospace applications).

• Troubleshoot advanced machining, tooling, and process issues to improve efficiency and reduce scrap.

• Make program edits at the machine (G-code) and recommend process improvements.

• Collaborate with Manufacturing Engineering on process development and continuous improvement initiatives.

• Train and mentor Mill Machinist I and II team members.

• Ensure compliance with safety standards, quality systems, and regulatory requirements (e.g., ITAR if applicable).

• Maintain accurate production, inspection, and traceability documentation.

• Advanced knowledge of CNC controls (e.g., Fanuc, Haas, Mazak).

• Strong proficiency in GD&T and complex blueprint interpretation.

• Experience with multi-axis machining (4-axis/5-axis preferred).

• Demonstrated ability to troubleshoot and optimize machining processes.

• High level of proficiency with precision measurement tools and inspection techniques.

Education/Experience:

• High school diploma or GED required; technical degree or apprenticeship preferred.

• 5–8+ years of milling experience in a precision manufacturing environment; aerospace experience strongly preferred

• Dental insurance

• Employee assistance program

• Flexible spending account

• Health insurance

• Health savings account

• Life insurance

• Paid time off

• Professional development assistance

• 401 k with Employer Match

• Tuition reimbursement

• Vision insurance