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Prototype Machinist Jobs in California (NOW HIRING)

RivCut

Prototype Machinist

Union City, CA · On-site

Role Description The Prototype Machinist is a full-time, on-site role based in Union City, CA. This role is responsible for setting up and operating manual and CNC machines to produce prototype and ...

Observable Space

Prototype Machinist

Los Angeles, CA · On-site

$95K - $130K/yr

About the Role We are seeking a Prototype Machinist to join our Los Angeles-based state-of-the-art prototyping facility. We're building a state of the art prototyping facility to machine some of the ...

Insight Manufacturing S

CNC Prototype Machinist

Murphys, CA · On-site

$21.25 - $29/hr

We are seeking an experienced CNC Prototype Machinist to join our machine shop team. Under general supervision, develops, writes, and edits programs that direct automated machine tools to cut and ...

Insight Manufacturing S

CNC Prototype Machinist

Murphys, CA · On-site

$21.25 - $29/hr

We are seeking an experienced CNC Prototype Machinist to join our machine shop team. Under general supervision, develops, writes, and edits programs that direct automated machine tools to cut and ...

Joby Aviation

CNC Prototype Machinist

Santa Cruz, CA · On-site

$46 - $67/hr

Overview Joby Aviation is seeking an experienced CNC Prototype Machinist to join our subtractive prototyping team. This individual's role is to setup, operate, program, make fixtures, jigs, test ...

Joby Aviation

CNC Prototype Machinist

Santa Cruz, CA

$46 - $67/hr

Joby Aviation is seeking an experienced CNC Prototype Machinist to join our subtractive prototyping team. This individual's role is to setup, operate, program, make fixtures, jigs, test articles, and ...

Joby Aviation

CNC Prototype Machinist

Santa Cruz, CA · On-site

$46 - $67/hr

Overview Joby Aviation is seeking an experienced CNC Prototype Machinist to join our subtractive prototyping team. This individual's role is to setup, operate, program, make fixtures, jigs, test ...

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Prototype Machinist information

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How much do prototype machinist jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for prototype machinist in California is $29.55, according to ZipRecruiter salary data. Most workers in this role earn between $24.66 and $32.50 per hour, depending on experience, location, and employer.

What is a prototype machinist?

A Prototype Machinist is responsible for creating precise, custom, or experimental parts based on design specifications, often for research and development. They use various machining tools like CNC machines, lathes, and mills to fabricate and modify components. This role requires strong problem-solving skills, attention to detail, and the ability to interpret technical drawings. Prototype Machinists work closely with engineers and designers to refine designs and ensure functionality before full-scale production.

What does a prototype machinist do?

A typical day for a Prototype Machinist involves interpreting technical drawings, setting up and operating machining equipment, and collaborating closely with engineers or product designers to create one-off or small-batch parts. You’ll routinely measure and inspect components, make adjustments on the fly, and document any design or process improvements. Expect a mix of independent hands-on work and teamwork, often in a prototyping lab or machine shop environment. Tight deadlines and evolving specifications mean flexibility and adaptability are key parts of the job, providing variety and opportunities to solve unique challenges daily.

What skills and qualifications are needed to be a prototype machinist?

A Prototype Machinist excels with precision machining skills, blueprint reading, and experience operating both manual and CNC machine tools, usually backed by a technical diploma or apprenticeship. Familiarity with CAD/CAM software, measuring instruments, and sometimes relevant certifications like NIMS (National Institute for Metalworking Skills) is essential. Strong problem-solving, creativity, and effective communication skills help machinists collaborate with engineers and adapt to unique, evolving projects. These abilities enable the machinist to accurately fabricate custom prototypes and contribute to successful product development within tight deadlines.

What are the most commonly searched types of Prototype Machinist jobs in California?

The most popular types of Prototype Machinist jobs in California are:

What are popular job titles related to Prototype Machinist jobs in California?

For Prototype Machinist jobs in California, the most frequently searched job titles are:

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The top searched job categories for Prototype Machinist jobs in California are:

What cities in California are hiring for Prototype Machinist jobs?

Cities in California with the most Prototype Machinist job openings:

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For Prototype Machinist jobs in CA, the most frequently searched job titles are:

Prototype Machinist jobs near you
Infographic showing various Prototype Machinist job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $61,460 per year, or $29.5 per hour.

Prototype Machinist

RivCut

Union City, CA • On-site

Other

Re-posted 12 days ago

Job description

Company Description RivCut partners with engineers, startups, and manufacturers in aerospace, medical device, robotics, and automotive industries to deliver precision parts that meet demanding specifications with speed and reliability. The company focuses on rapid prototyping and low-volume production to support R&D and new product development. RivCut provides full material sourcing, finishing, and quality inspection, ensuring dependable quality at every stage. Team members collaborate closely with clients, offering hands-on technical support and clear, transparent communication. The company values partnerships built on trust, clarity, and precision, creating an environment where technical craftsmanship and customer service are equally important.

Role Description The Prototype Machinist is a full-time, on-site role based in Union City, CA. This role is responsible for setting up and operating manual and CNC machines to produce prototype and low-volume parts to tight tolerances. Day-to-day tasks include reading and interpreting engineering drawings, selecting materials and tooling, programming CNC equipment, and performing machining operations such as milling and turning. The Prototype Machinist will inspect finished components, document measurements, and collaborate with engineers and project managers to refine designs and processes. Responsibilities also include maintaining equipment, ensuring a safe and organized work area, and contributing to continuous improvement in throughput, quality, and manufacturability.

Qualifications

  • Strong machining skills, including experience with manual Machining and Lathe operations.
  • Proficiency in Milling operations and setup for prototype and low-volume production.
  • Hands-on experience with CNC Programming, including creating, modifying, and troubleshooting programs for complex parts.
  • Demonstrated Prototyping experience, from concept to finished part, working closely with engineering teams.
  • Ability to read and interpret technical drawings, GD&T, and work instructions; strong measurement and inspection skills using calipers, micrometers, and other instruments.
  • Familiarity with a variety of metals and plastics, cutting tools, feeds and speeds, and best practices for tight-tolerance machining.
  • Attention to detail, problem-solving mindset, and ability to work independently in a fast-paced, R&D-focused environment.
  • Relevant vocational training, apprenticeship, or technical certification in machining or manufacturing; prior experience in prototype or job-shop environments is preferred.

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