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Assistant Process Engineer Jobs in Brea, CA (NOW HIRING)

Responsibilities: * Assist the Process Engineering team in developing a deep understanding of the metal additive process and hardware operation by analyzing massive in-situ data sets to gain insight ...

Responsibilities: * Assist the Process Engineering team in developing a deep understanding of the metal additive process and hardware operation by analyzing massive in-situ data sets to gain insight ...

Responsibilities: * Assist the Process Engineering team in developing a deep understanding of the metal additive process and hardware operation by analyzing massive in-situ data sets to gain insight ...

Position Summary We are seeking a Process Engineer Intern to support equipment programming and ... Key Responsibilities Equipment Programming Support โ€ข Assist with programming, setup, or ...

Equipment Manufacturing company has a need for a Field Process Engineer Open to candidates ... Ability to learn semiconductor processing to assist customers with integration * Must be willing to ...

Process Engineering Technician

Chino, CA ยท On-site

$30 - $35/hr

As part of our process engineering team, you will help make sure we can meet that demand ... Work with the Technical Writing team to develop, document, and assist with maintaining accurate ...

New

: Process Development Engineer Huntsman is seeking a Process Development Engineer supporting the ... Support capital projects, equipment modifications, and commissioning activities as needed * Assist ...

Process Development Engineer

Hawthorne, CA ยท On-site

$110K - $135K/yr

Experience building AI prompts/agents/workflows and using AI code assistants * Experience with AS ... Process Development Engineer/Level I: $100,000.00 - $115,000.00/per year Process Development ...

Process Development Engineer

Hawthorne, CA ยท On-site

$110K - $135K/yr

Experience building AI prompts/agents/workflows and using AI code assistants * Experience with AS ... Process Development Engineer/Level I: $100,000.00 - $115,000.00/per year Process Development ...

Process Development Engineer

Hawthorne, CA ยท On-site

$110K - $135K/yr

Experience building AI prompts/agents/workflows and using AI code assistants * Experience with AS ... Process Development Engineer/Level I: $100,000.00 - $115,000.00/per year Process Development ...

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Assistant Process Engineer information

See Brea, CA salary details

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How much do assistant process engineer jobs pay per hour?

As of Sep 2, 2026, the average hourly pay for assistant process engineer in Brea, CA is $26.39, according to ZipRecruiter salary data. Most workers in this role earn between $18.17 and $30.62 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an assistant process engineer?

To thrive as an Assistant Process Engineer, a solid background in chemical or process engineering, analytical problem-solving skills, and a relevant engineering degree are essential. Familiarity with process simulation software (such as Aspen HYSYS or AutoCAD), data analysis tools, and safety regulations is typically required. Strong teamwork, effective communication, and attention to detail help individuals stand out in this role. These skills and qualities ensure efficient process optimization, safe operations, and successful collaboration within engineering teams.

What are some common challenges faced by assistant process engineers, and how can they effectively overcome them?

Assistant Process Engineers often encounter challenges such as adapting to rapidly changing project requirements, troubleshooting unexpected process inefficiencies, and balancing multiple tasks under tight deadlines. To navigate these obstacles, it's important to develop strong problem-solving skills, maintain clear communication with senior engineers and cross-functional teams, and stay organized through effective time management. Proactively seeking feedback and learning from experienced colleagues can also help in building confidence and technical expertise, paving the way for career progression.

What is the difference between Assistant Process Engineer vs Process Engineer?

AspectAssistant Process EngineerProcess Engineer
QualificationsBachelor's in Engineering or related field, some certificationsBachelor's or higher in Engineering, often with more experience
Work EnvironmentSupportive, entry-level, team-basedMore autonomous, project management responsibilities
ResponsibilitiesAssist in process design, data collection, troubleshootingDesign, optimize, and oversee manufacturing processes

Assistant Process Engineers typically support process development and troubleshooting under supervision, while Process Engineers take on more independent responsibilities in designing and optimizing processes. Both roles require similar educational backgrounds, but Process Engineers usually have more experience and autonomy in their tasks.

How much does an assistant process engineer get paid?

The average salary for an assistant process engineer typically ranges from $50,000 to $70,000 per year, depending on experience, location, and industry. Entry-level positions may start lower, while those with specialized skills or certifications can earn higher wages. Benefits often include health insurance, paid time off, and opportunities for professional development.

What does an assistant process engineer do?

An assistant process engineer supports the development, implementation, and optimization of manufacturing or chemical processes. They assist in data collection, process troubleshooting, and ensuring safety and quality standards are met, often using tools like process simulation software. This role typically requires strong analytical skills and knowledge of engineering principles.

What are the most commonly searched types of Process Engineer jobs in Brea, CA?

The most popular types of Process Engineer jobs in Brea, CA are:

What are popular job titles related to Assistant Process Engineer jobs in Brea, CA?

For Assistant Process Engineer jobs in Brea, CA, the most frequently searched job titles are:

What job categories do people searching Assistant Process Engineer jobs in Brea, CA look for?

The top searched job categories for Assistant Process Engineer jobs in Brea, CA are:

What cities near Brea, CA are hiring for Assistant Process Engineer jobs?

Cities near Brea, CA with the most Assistant Process Engineer job openings:

Process Engineer (Advanced R&D)

Freeform

Los Angeles, CA โ€ข On-site

$95K - $140K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 8 days ago


Job description

PROCESS ENGINEER (ADVANCED R&D)

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 a Process Engineer at Freeform, you will have the unique opportunity to invent novel processes for the world's most advanced metal 3D printing systems. You will deep dive into complex, multi-physics phenomena to gain a fundamental understanding of the system and use those learnings to create a new state-of-the-art process. You will work alongside an interdisciplinary team of mechanical, software, and simulations engineers to analyze massive in-situ data sets as well as post-print material characteristics and rapidly iterate on improving the printing technology with machine learning. The ideal candidate will be comfortable working in a fast-paced R&D environment, solving very audacious problems from scratch.

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

Responsibilities:ย 

  • Assist the Process Engineering team inย developing a deep understanding of the metal additive process and hardware operation by analyzing massive in-situ data sets to gain insight into physical mechanisms of the printing process
  • Drive executionย of experiments, analyze data, and develop and optimize processes on a metal additive system
  • Perform post-build metrology measurements and analysis of material properties such as tensile strength, surface roughness, and alloy microstructure
  • Generate and track quality metrics of printed customer parts such as dimensional accuracy, defect distribution, and surface roughness
  • Assist in theย development and implementation of tool qualification procedures
  • Collaborate with mechanical, software, and simulations engineers to analyze data and rapidly improve printing processes

Basic Qualifications:

  • Advanced degree (MS/PhD) in material science, physics, or similar engineering discipline
  • First principles thinker with strong fundamentals in physics
  • Experience with experimental design and statistical data analysis
  • Strong data analysis skills and ability to interpret important information from extremely large data sets

Nice to Have:

  • Undergraduate research experience in material science, physics, mechanical engineering
  • Process development experience from cutting edge industries such as semiconductor, solar, or displays
  • Experience with Python and/or MATLAB
  • Experience with statistical data analysis software such as R, JMP, or Minitab
  • Experience operating complex equipment
  • Familiarity with metallurgical sample preparation such as cutting, grinding, polishing, acid etching, and optical microscopy
  • Passion for developing new processes from scratch
  • Excellent verbal and written communication skills

Location:

  • 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.

  • Our fast-paced, cross-functional environment is built on close collaboration, and as such, this role requires full-time onsite presence (five days a week), with very limited exceptions.

What We Offer:

  • We have an inclusive and diverse culture that values collaboration, learning, and making deliberate data-driven decisions.
  • We offer a unique opportunity to be an early and integral member of a rapidly growing company that is scaling a world-changing technology.
  • Benefits
    • Significant stock option packages
    • 100% employer-paid Medical, Dental, and Vision insurance (premium PPO and HMO options)
    • Life insurance
    • Traditional and Roth 401(k)
    • Relocation assistance providedย 
    • Paid vacation, sick leave, and company holidays
    • Generous Paid Parental Leave and extended transition back to work for the birthing parent
    • Free daily catered lunch and dinner, and fully stocked kitchenette
    • Casual dress, flexible work hours, and regular catered team building events
  • Compensation ย 
    • As a growing company, the salary range is intentionally wide as we determine the most appropriate package for each individual taking into consideration years of experience, educational background, and unique skills and abilities as demonstrated throughout the interview process. Our intent is to offer a salary that is commensurate for the company's current stage of development and allows the employee to grow and develop within a role.ย 
    • In addition to the significant stock option package, the estimated salary range for this role is $95,000-$140,000, dependent on the candidate's academic level (Bachelors, Masters, or PhD) and demonstrated out of classroom experience.
  • 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.