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Plastic Process Engineer Jobs in California (NOW HIRING)

West-Tech Materials

Sales Engineer

San Jose, CA · On-site

... including plastic extrusion, braiding, coiling, coating and plastic injection molding. Our new ... Knowledge of precision machining, laser processing, engineered materials technology & clean room ...

Lucid Motors

Sr. Plastics Engineer, Tooling

Newark, CA · On-site

$140K/yr

The Sr. Plastics Engineer Tooling and Process role strengthens the Tooling and Process Group by ... Proven hands-on experience with plastic injection molding process, including process optimization

Meissner Filtration Products

$106K - $146K/yr

You own engineering-led supplier strategy for our most complex, highest-impact programsarchitecting ... plastics processing, and raw material supply; establish supplier capability profiles and ...

Meissner

Senior Sourcing Engineer

Camarillo, CA

$106K - $146K/yr

You own engineering-led supplier strategy for our most complex, highest-impact programs ... plastics processing, and raw material supply; establish supplier capability profiles and ...

Bausch+Lomb Companies Inc.

The engineer will drive the design, qualification, and continuous improvement of primary plastic ... Experience with plastics conversion processes such as injection molding, thermoforming, form-fill ...

Nelson Miller Group

Project Engineer

Rowland Heights, CA · On-site

$97K - $125K/yr

Strong understanding of manufacturing and assembly processes (plastics, electronics, HMI solutions, supply chain interactions). * Ability to read and interpret technical drawings, specifications, and ...

Nelson Miller Group

Project Engineer

Rowland Heights, CA · On-site

$97K - $125K/yr

Strong understanding of manufacturing and assembly processes (plastics, electronics, HMI solutions, supply chain interactions). * Ability to read and interpret technical drawings, specifications, and ...

Balda C Brewer

Quality Engineer

Ontario, CA · On-site

$80K - $120K/yr

Collaborate with Program Managers, Process Engineers, and/or Validation Engineers to execute ... Previous experience in plastic injection molding related environment. * Demonstrated experience to ...

Cohu

Mechanical Engineer II

San Diego, CA · On-site

We are seeking a Mechanical Engineer with strong expertise in automation equipment design ... Working knowledge of materials, coatings, plastics, manufacturing processes, GD&T, and design for ...

Cohu

Mechanical Engineer II

San Diego, CA · On-site

We are seeking a Mechanical Engineer with strong expertise in automation equipment design ... Working knowledge of materials, coatings, plastics, manufacturing processes, GD&T, and design for ...

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All JobsPlastic Process Engineer JobsPlastic Process Engineer Jobs in California

Plastic Process Engineer information

See California salary details

$48.9K

$90.8K

$140.6K

How much do plastic process engineer jobs pay per year?

As of Jul 17, 2026, the average yearly pay for plastic process engineer in California is $90,813.00, according to ZipRecruiter salary data. Most workers in this role earn between $73,500.00 and $101,700.00 per year, depending on experience, location, and employer.

What are some common challenges faced by Plastic Process Engineers in optimizing manufacturing processes?

Plastic Process Engineers often encounter challenges such as maintaining consistent product quality while scaling up production, troubleshooting equipment malfunctions, and minimizing material waste. They must continuously monitor and adjust processing parameters like temperature, pressure, and cycle time to ensure efficiency and compliance with specifications. Collaboration with design, quality, and maintenance teams is crucial to quickly resolve issues and implement process improvements. Staying updated with new materials and technologies also plays a key role in overcoming these challenges and advancing in the field.

What does a Plastic Process Engineer do?

A Plastic Process Engineer is responsible for designing, developing, and optimizing processes involved in the manufacturing of plastic products. They work with various types of plastic materials and molding technologies, such as injection molding, extrusion, and blow molding. Their duties often include troubleshooting production issues, improving process efficiency, ensuring product quality, and collaborating with design and production teams to implement best practices. They also play a key role in selecting materials, setting process parameters, and maintaining compliance with safety and environmental regulations.

What is the difference between Plastic Process Engineer vs Plastic Technician?

AspectPlastic Process EngineerPlastic Technician
CredentialsBachelor's degree in plastics engineering, chemical engineering, or related fieldTechnical diploma or associate degree in plastics technology or related field
Work EnvironmentDesign, optimize, and oversee manufacturing processes in production facilitiesOperate and maintain plastic processing equipment on the production floor
ResponsibilitiesProcess development, troubleshooting, and process improvementMachine setup, operation, and quality checks

The Plastic Process Engineer focuses on designing and improving plastic manufacturing processes, requiring a higher level of education and analytical skills. In contrast, the Plastic Technician handles day-to-day machine operation and maintenance. Both roles are essential in the plastics industry, but they differ in scope and responsibilities.

What are the key skills and qualifications needed to thrive as a Plastic Process Engineer, and why are they important?

To thrive as a Plastic Process Engineer, you need a solid background in chemical or mechanical engineering, polymer science, and process optimization, often backed by a relevant degree. Familiarity with CAD software, injection molding machines, statistical process control (SPC), and certifications like Six Sigma are commonly required. Strong problem-solving abilities, attention to detail, and effective communication skills help you collaborate with cross-functional teams and drive continuous improvement. These competencies ensure efficient production, high product quality, and innovation in plastic manufacturing environments.
What are popular job titles related to Plastic Process Engineer jobs in California? For Plastic Process Engineer jobs in California, the most frequently searched job titles are:
What job categories do people searching Plastic Process Engineer jobs in California look for? The top searched job categories for Plastic Process Engineer jobs in California are:
Plastic Process Engineer jobs near you
Infographic showing various Plastic Process Engineer 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 $90,813 per year, or $43.7 per hour.
Sales Engineer

Sales Engineer

West-Tech Materials

San Jose, CA • On-site

Full-time

Posted 26 days ago

Job description

Company Description
West-Tech Materials represents leading manufacturers specializing in the design and engineering of medical products. West-Tech Materials has emerged as a leader in the industry with an impeccable reputation of performance, service and value. We have had a significant growth within the Medical Device market in the last 3 years and are looking for an aggressive and enthusiastic sales professional based out of the Northern California area to sell our catheter based product.
Job Description
We are looking for sales engineers based in the Northern California area with experience and a basic understanding of catheter design, manufacturing and assembly including plastic extrusion, braiding, coiling, coating and plastic injection molding. Our new opening will be focused on product development specializing in mnimally Invasive delivery & access devices including PTCA, PTA, EP, Specialty & Niche catheters - Atherectomy, CTO, Vulnerable Plaque, Thrombectomy & GI catheters. Knowledge of precision machining, laser processing, engineered materials technology & clean room assembly will be a plus.
  • Job responsibiliites will require interfacing directly with medical device customer engineering and purchasing personal to identify opportunities for our key principle products and technologies.
  • Sales activities will involve face-to-face sales calls working with engineers to identify applications and function as the liaison between the customer and our manufacturers engineering team to develop and provide engineered solutions.

If you are an independent, hardworking, enthusiastic individual wanting to be part of our entrepreneurial culture this may be the career path for you. We have an aggressive compensation package with no ceiling for earnings and sales management opportunities as we continue to grow our business throughout the Western US medical market.
Qualifications
Ideally the candidate should have an engineering background and currently selling into the Northern California medical device market.
Experience with some or all of the following technologies is desired: Catheter design & manufacturing: Extrusion, braiding, coiling, coating, assembly, braided shafts, metal shafts, balloon catheters, Precision Machining & Manufacturing: CNC & swiss screw Machining, Wire EDM, micromachining, Laser processing: Laser cutting, welding, drilling, stent manufacturing, Electropolishing, Heat setting Engineered Materials: Radiopaque alloys, Ti, Stainless Steels, MP35N,NiTi
Additional Information
All your information will be kept confidential according to EEO guidelines.

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