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Process Engineer Internship Jobs in California (NOW HIRING)

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

By submitting your interest, you'll be among the first to know when internship opportunities open ... Producing documentation to support medical device regulatory processes Who This Is For * Students ...

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Process Engineer Internship information

See California salary details

$13

$21

$29

How much do process engineer internship jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for process engineer internship in California is $21.89, according to ZipRecruiter salary data. Most workers in this role earn between $18.03 and $25.62 per hour, depending on experience, location, and employer.

What is a Process Engineer Internship job?

A Process Engineer Internship is a temporary role where students or recent graduates gain hands-on experience in optimizing manufacturing or production processes. Interns assist in analyzing workflows, improving efficiency, and troubleshooting technical issues under the supervision of experienced engineers. They may work with data collection, process simulations, and quality control initiatives to enhance operations. This internship helps develop problem-solving skills and technical knowledge applicable to industries like manufacturing, pharmaceuticals, and energy.

What types of projects or tasks are Process Engineer Interns typically involved with during their internship?

Process Engineer Interns are often assigned to support ongoing process improvement initiatives, which may include data collection and analysis, mapping and designing workflows, or assisting with troubleshooting production issues. They frequently collaborate with seasoned engineers and other departments such as quality assurance and operations to implement solutions or test new equipment and procedures. Daily responsibilities can range from conducting research and preparing technical documentation to participating in meetings and presenting findings. These experiences help interns build essential technical and interpersonal skills that are valuable for future engineering roles.

What are the key skills and qualifications needed to thrive in the Process Engineer Internship position, and why are they important?

To excel as a Process Engineer Intern, you generally need a background in engineering (chemical, mechanical, or industrial), problem-solving abilities, and a solid understanding of process design and analysis. Familiarity with technical tools like AutoCAD, MATLAB, or process simulation software, and knowledge of Lean or Six Sigma methodologies, can be especially valuable. Strong communication, teamwork, and adaptability set candidates apart in this fast-paced and collaborative environment. These capabilities are important because they enable interns to effectively contribute to process improvements, ensure operational efficiency, and integrate seamlessly with cross-functional teams.

What are the most commonly searched types of Process Engineer jobs in California? The most popular types of Process Engineer jobs in California are:
What cities in California are hiring for Process Engineer Internship jobs? Cities in California with the most Process Engineer Internship job openings:
Infographic showing various Process Engineer Internship job openings in California as of July 2026, with employment types broken down into 92% Full Time, 4% Part Time, 1% Temporary, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $45,536 per year, or $21.9 per hour.
Additive Engineering Internship (Fall 2026)

Additive Engineering Internship (Fall 2026)

Freeform

Los Angeles, CA โ€ข On-site

$35/hr

Other

Re-posted 3 days ago


Job description

ADDITIVE ENGINEERING INTERNSHIP (FALL 2026)ย 

Freeform builds AI-native manufacturing systems that unify software, hardware, and physics to produce industrial-scale parts at the speed of human ideation. By treating manufacturing as a single integrated system, we unlock a new era of innovation where complex hardware is designed, built, and scaled without limits.

As an Additive Engineering Intern at Freeform, you will contribute to the development and scaling of our advanced metal 3D printing processes, including design for additive manufacturing (DFAM) feedback, print file preparation, toolpath automation, part quality analysis, and end-to-end process improvement. You will work closely with mechanical, electrical, software, and manufacturing engineers to support all stages of print development for high-volume production. Interns at Freeform own meaningful cradle-to-grave projects. Using first-principles thinking, you will help define test methods, evaluate solutions, iterate quickly, and synthesize information from engineering drawings, in-situ machine data, post-processing results, and inspection data to draw conclusions that improve printing and downstream machining processes.

3D printing experience is not required to be successful here - we look for smart, motivated, collaborative engineers who love solving hard problems and creating amazing technology!ย 

Responsibilities:ย 

  • Own a cradle to grave project that delivers meaningful impact to critical print factory capabilities or customer print workflows
  • Support all stages of print development including design for additive manufacturing feedback, file preparation, printing, post-processing, and quality control
  • Analyze in-situ data and post-print part quality to drive continuous improvement in system performance
  • Use first-principles thinking to define problems, develop test methods, evaluate solutions, iterate, and provide technical recommendations

ย Basic Qualifications:ย 

  • Currently enrolled in a bachelor's degree in mechanical or aerospace engineering from an ABET accredited university or collegeย 
  • Hands on design experience from internships or engineering clubs such as FSAE, Baja SAE, solar car, rocket club, robotics club, or similarย 
  • Strong grasp of mechanical engineering fundamentals and comfortable taking a first-principles approach to solving problemsย ย 

Nice to Have:ย 

  • Advanced degree (Master's, PhD) in mechanical or aerospace engineering
  • Experience with metal 3D printing or additive manufacturing processes
  • Experience with process development for metal additive manufacturing
  • Scripting experience in MATLAB or similar tools for toolpath generation
  • Experience with DFM and GD&T
  • Experience with CNC machining
  • Passion for improving the state of metal 3D printing
  • Comfortable working in fast-paced, ambiguous environments and iterating quickly (comfortable building the plane as we fly it)
  • Strong communicator who collaborates across disciplines and proactively seeks support when needed
  • Willing to take ownership of tasks big and small, with a hands-on, problem-solving mindset
  • Strong work ethic with a refuse-to-fail mindset
  • Demonstrated indicators of excellence and/or achieving success against adversity (i.e. top academic performance, leadership in engineering clubs, first-generation college student, or other examples of resilience and achievement)

Location:ย 

  • Based in Hawthorne, our vertically integrated facility brings technology development, R&D, and production together under one roof. We operate at the center of LA's deep tech ecosystem, surrounded by some of the most ambitious hardware innovation happening anywhere in the country.

What We Offer:

  • We have an inclusive and diverse culture that values collaboration, learning, and making deliberate data-driven decisionsย 
  • We offer a unique opportunity to be an early and integral member of a rapidly growing company that is scaling a world-changing technologyย 
  • Compensation and Benefitsย 
    • The compensation for this role:ย 
      • Engineering Intern/Undergraduate: $30/hour
      • Engineering Intern/Masters: $32.50/hour
      • Engineering Intern/PhD: $35/hour
    • Relocation assistance provided
    • Free daily catered lunch and dinner, and fully stocked kitchenetteย 
    • Casual dress, flexible work hours, and regular catered team building eventsย 
  • Freeform is an Equal Opportunity Employer that values diversity; employment with Freeform is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.ย