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

Honor Plastics & Molding

Process Engineer

Pomona, CA

$85K/yr

The process engineer is responsible for maintaining daily production uptime of fully automated ... Coordinate and assist with new mold samplings including the molding process and the creation of ...

Honor Plastics & Molding

Process Engineer

Pomona, CA · On-site

$83K - $85K/yr

The process engineer is responsible for maintaining daily production uptime of fully automated ... Coordinate and assist with new mold samplings including the molding process and the creation of ...

Crown Technical Systems

Process Engineer

Fontana, CA · On-site

$86K - $118K/yr

In charge for process-engineering capabilities focused on cost, quality and delivery improvements ... * Assist in the development of training and provide training to production personnel during new ...

Cargill

Process Engineer

Fullerton, CA · On-site

$78K - $120K/yr

Job Purpose and Impact The Process Engineer applies process and project engineering techniques to ... business to benchmark practices and assist in the creation and execution of strategies.

Cargill

Process Engineer

Fullerton, CA · On-site

$78K - $120K/yr

Job Purpose and Impact The Process Engineer applies process and project engineering techniques to ... business to benchmark practices and assist in the creation and execution of strategies.

Cargill

Process Engineer

Fullerton, CA · On-site

$78K - $120K/yr

Job Purpose and Impact The Process Engineer applies process and project engineering techniques to ... business to benchmark practices and assist in the creationand executionof strategies.

Collectors Universe Inc.

Process Engineer II

Santa Ana, CA · On-site

$72 - $91.59/hr

The Process Engineer will assist with process development, equipment design, validation, and implementation, efficiency improvements, 5S implementation, implementation of Lean manufacturing concepts ...

ZEISS

Process Engineer II

Ontario, CA · On-site

$99K - $124K/yr

As an engineering liaison, support CAPA projects and root cause analysis to investigate productivity or quality issues with assistance from Operations and Quality Management. * Assist Sr. Process ...

ZEISS

Process Engineer II

Ontario, CA · On-site

$99K - $124K/yr

As an engineering liaison, support CAPA projects and root cause analysis to investigate productivity or quality issues with assistance from Operations and Quality Management. * Assist Sr. Process ...

Collectorsuniverse

Process Engineer II

Santa Ana, CA · On-site

The Process Engineer will assist with process development, equipment design, validation, and implementation, efficiency improvements, 5S implementation, implementation of Lean manufacturing concepts ...

SpaceX

Process Engineer (Starshield)

Hawthorne, CA · On-site

$115K - $160K/yr

PROCESS ENGINEER (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch ... to assist in quarantine and rework activities * Drive corrective action to products not meeting ...

SpaceX

Process Engineer (Starshield)

Hawthorne, CA

$115K - $160K/yr

PROCESS ENGINEER (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch ... to assist in quarantine and rework activities * Drive corrective action to products not meeting ...

SpaceX

Process Engineer (Starshield)

Hawthorne, CA · On-site

$115K - $160K/yr

PROCESS ENGINEER (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch ... to assist in quarantine and rework activities * Drive corrective action to products not meeting ...

Worley

Process Engineer Level II

Monrovia, CA · On-site

$110K - $162K/yr

If required, assist, and support junior personnel within the process engineering team. * Communicate effectively with the process engineering team and project stakeholders, including the Customer.

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Assistant Process Engineer information

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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:

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

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Assistant Process Engineer jobs near you

Assistant Process Engineer

Wei-Chuan U.S.A., Inc.

Bell Gardens, CA • On-site

$55K - $75K/yr

Other

Medical, Retirement, PTO

Posted 6 days ago

Job description

About the Role

We are seeking a Assistant Process Engineer to join our team at our Bell Gardens, CA facility. This role supports continuous improvement initiatives across manufacturing operations, with a focus on improving efficiency, food safety, quality, and equipment reliability.


You will work closely with cross-functional teams to develop manufacturing technology, troubleshoot production issues, and implement process improvements while identifying and applying new technologies.


Key Responsibilities

  • Analyze existing processes and equipment to improve process flow, with a focus on continuous improvement in food safety, quality, and production efficiency
  • Coordinate and support activities to resolve machine, equipment, and utility issues
  • Support the Quality team in root cause analysis and corrective actions
  • Manage and assist with preventive maintenance (PM) programs
  • Drive process improvement initiatives and support manufacturing optimization efforts


Qualifications

  • Bachelor’s degree in Electrical Engineering, Mechanical Engineering, or related field
  • Experience in food manufacturing or similar production environment
  • Familiarity with CAD software (e.g., SolidWorks)
  • Strong problem-solving skills and hands-on engineering mindset
  • Ability to work effectively in a team-oriented manufacturing environment


Compensation & Benefits

$55,000 – $75,000 annually, with final offer will depend on experience and qualifications, plus a comprehensive benefits package including health insurance, 401(k), paid time off, and more.


Equal Employment Opportunity Statement

We are an equal opportunity employer committed to creating an inclusive environment for all employees. We do not discriminate based on any protected characteristic under applicable laws.


We also provide reasonable accommodations to qualified individuals with disabilities and to individuals with sincerely held religious beliefs, in accordance with applicable laws.


About Us

Wei-Chuan U.S.A., Inc. is a leading manufacturer and supplier of authentic Chinese food products in the United States, dedicated to delivering high-quality flavors that connect generations and cultures. Since our founding in 1972, we have proudly combined tradition with innovation to create a diverse range of frozen and grocery products — from classic dumplings, gyoza, and potstickers to spring rolls, buns, wontons, and more — enjoyed by consumers and foodservice partners nationwide.


Our mission is to be the premier provider of authentic Chinese food that is convenient, delicious, and trusted for everyday meals and special occasions alike. We uphold rigorous quality and food safety standards across our manufacturing facilities and distribution network, supported by USDA and FDA certifications and industry-leading practices.


Based in City of Industry, California, with multiple manufacturing and distribution centers across the U.S., Wei-Chuan USA continues to expand its reach while honoring the legacy of our founders and the deep cultural heritage behind every recipe. We serve diverse markets, inspire culinary exploration, and remain committed to excellence in product innovation, customer service, and community engagement.

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