Now Hiring CNC Milling Machinist
Ontario, CA
Pay Rate: $29.00 – $34.00 per hour DOE
Shift: Monday – Friday 2:00 PM 10:30 PM (Some weekends)

Built by Hand. Backed by Skill.

For CNC Milling Machinist openings in Ontario, this is the work that separates the talkers from the doers. Every setup, every cut, every shift—it’s all about craftsmanship and consistency.

How to Qualify as a CNC Milling Machinist

• High school diploma or GED required
• 5+ years of experience with 3–5 axis CNC machining (HAAS mills, DMS, Biesse, Thermwood, or similar)
• Strong ability to read and interpret complex engineering drawings and GD&T
• Experience with CNC controls including HAAS, Fanuc, and Siemens
• Strong understanding of shop math (algebra, geometry, trigonometry)
• Proficiency with precision measurement tools (micrometers, calipers, etc.)
• Ability to work independently and take ownership of quality and output

Preferred Qualifications

• Experience machining composites, honeycomb, plastics, and metallic materials
• Experience with both dry machining (composites) and coolant machining (metals)
• Background in conventional milling, lathe operation, or hand fabrication
• Fixture design or fabrication experience
• Experience working in an AS9100 or aerospace manufacturing environment

What’s Expected 

• Set up and operate 5-axis CNC mills, high-speed routers, and lathes to produce precision parts
• Interpret blueprints, work orders, CNC programs, setup sheets, tool lists, and inspection requirements
• Load CNC programs, establish zero/reference points, and set tool offsets and lengths
• Select and install proper tooling, fixtures, and workholding equipment
• Monitor machining processes, including lubrication, cooling, feeds, and speeds
• Perform first article inspections, verify accuracy, and make offset/program adjustments as needed
• Inspect finished parts using precision measuring tools (calipers, micrometers, etc.)
• Maintain clean, organized, and safe work areas in accordance with OSHA and company standards
• Perform preventive maintenance on equipment and document all actions
• Collaborate with engineering and production teams to improve machining processes and efficiency
• Provide feedback for process improvements and support continuous improvement initiatives

The Crew Benefits

• Good weekly pay that hits like clockwork.
• Health, dental, and vision that keep you strong.
• Life and disability coverage that’s real support.
• Safety that’s taken seriously from day one.
• Respect for your work from people who get it.
• 401(k) option if you’re thinking long game.

“They give you exposure to great jobs you never knew existed.” – Machine Operator, Staffmark

Tired of searching? Time to make the chips fly. Apply Now. 

Join a Team That Works for You

At Staffmark, we’re more than just a staffing company—we’re your career partner. As part of RGF Staffing and Recruit Group, an HR powerhouse behind big names like Indeed and Glassdoor, we’ve got the muscle and the know-how to get you where you want to go.
With more than half a century of experience and a track record of putting hundreds of thousands of people to work every year, we’ve got your back. Whether you’re looking to level up, switch gears, or just get to work fast, we make it happen.
Join us and experience the advantage of working with a trusted name in recruiting—because your success is our success.

About Us

At Staffmark, we connect hardworking people with great companies, creating opportunities that make a lasting impact.

Staffmark is an equal opportunity employer. All applicants will receive consideration without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other legally protected status. Staffmark offers reasonable accommodations for qualified individuals with disabilities; contact your local branch for inquiries. Staffmark is an E-Verify employer. See our Privacy Notice for Candidates and Employees/Contractors at https://smgroupna.com/privacy-notice-for-candidates-and-employees-contractors. By applying, you consent to receive AI-generated and non-AI-generated calls, texts, or emails from Staffmark Group, its affiliates, and partners. Frequency varies and message/data rates may apply. Reply STOP to cancel or HELP for help.