Machine operator jobs in California: what to know
What a machine operator does
Machine operators set up, run and watch the machines that cut, shape, mold, pack or fill products. You load material, start the machine, check the finished parts against measurements and keep the line moving. In California you'll find these jobs at food and beverage plants in the Central Valley and Inland Empire, metal and plastic shops in Los Angeles and Orange County, and aerospace and medical manufacturers around San Diego and the Bay Area.
Types of operator jobs
- Production worker or associate: entry level, working along a line packing, sorting or loading.
- Machine operator: runs one or more machines, such as presses, molding machines or packaging lines.
- CNC operator: loads parts and runs computer-controlled mills and lathes, checking parts with gauges.
- CNC machinist: sets up the machine, picks tools and edits programs. Usually needs experience or training.
- Welder or fabricator: joins and shapes metal. Many shops ask for a weld test.
Skills employers look for
- Basic math and reading measurements, including decimals and fractions.
- Using calipers and micrometers to check parts.
- Following safety rules, including lockout/tagout before clearing a jam.
- Noticing when something sounds or looks wrong and stopping the line.
Training and certificates
Most operator jobs train you on site, and employers must give you safety training for the machines you use. For CNC and machining careers, community college machining programs and NIMS credentials (National Institute for Metalworking Skills) show employers you know the basics. Welders often earn AWS (American Welding Society) certifications.
How to get hired
- Start with "production associate" or "machine operator trainee" jobs if you're new.
- List any experience with tools, forklifts, or factory and warehouse work.
- Be ready for steel-toe shoes, safety glasses and hearing protection on the floor.
- Ask if the employer pays for training or certificates after 90 days. Many do.
Questions people ask
Do I need experience to run a CNC machine?
Not always for operator roles: many shops train operators to load parts and run proven programs. Setup and programming jobs usually need experience or a machining course.
What's the difference between operator and machinist?
An operator runs the machine with a set program. A machinist sets it up, chooses tools, adjusts programs and solves problems when parts come out wrong.
Your pay and breaks in California
- Minimum wage: the statewide minimum is $16.90 an hour in 2026, and many cities set a higher local minimum. Some healthcare employers have their own, higher minimum wage schedule.
- Overtime: most hourly workers earn 1.5 times their pay after 8 hours in a day or 40 hours in a week, and double pay after 12 hours in a day.
- Breaks: a 30-minute meal break when you work more than 5 hours, and a paid 10-minute rest break for every 4 hours worked (or major part of 4 hours).
- Pay in job posts: employers with 15 or more workers must include a pay range in their job posts, so check the listing before you apply.
Questions about pay or breaks? The California Labor Commissioner explains your rights and how to file a claim.