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Plastics Process Engineer Jobs in New Jersey (NOW HIRING)

Comar

Plastics Process Engineer

Buena, NJ · On-site

Process Engineer Hours: full-time position. Competitive pay & benefits: health, dental, vision, paid time off, 401k with match... and more! "Come Build a Career with our Growing, Fast-Paced, Customer ...

Weiss-Aug Group

Process Innovation Manager

Fairfield, NJ · On-site

$120K - $140K/yr

We're currently seeking a passionate and skilled Plastics Process Molding Tooling Engineer to join our team and contribute to our mission of delivering high-quality, engineered solutions to our ...

AMRESCO

Plastics Design Engineer

Bridgewater, NJ

Avantor is looking for a Plastics Design Engineer to be responsible for hands-on execution of ... Process Optimization: Contribute to process improvements in plastics manufacturing ...

Gemco

Process Engineer

Middlesex, NJ · On-site

$80 - $100/hr

Summary We are seeking a Process Engineer with a strong Chemistry background to join our team. The ... plastics * Familiarity with Lean Manufacturing or Six Sigma methodologies * PCQI related to SQF ...

New

ADP, Inc.

Process Engineer

Phillipsburg, NJ · On-site

$101 - $115/hr

Process Engineer Full Time NJ Facility 2X9 2X2, Philipsburg, NJ, US 30+ days ago Requisition ID ... in Plastics Engineering preferred. * Knowledge of Scientific Molding principals EXPERIENCE : 5+ ...

Posted today

Formosa Plastics

Carbon Engineer

Livingston, NJ · On-site

$126K - $134K/yr

A. (Formosa Plastics) is a growing, vertically-integrated supplier of plastic resins and ... The Carbon Engineer will apply engineering principles, process knowledge, and carbon accounting ...

Comar

Plant Engineer

Buena, NJ · On-site

Strong understanding of plastic processing equipment and plastic materials, including injection ... engineering resins. * Understanding of mold and tooling design related to plastic processing.

Comar

Plant Engineer

Buena, NJ · On-site

$90 - $130/hr

Strong understanding of plastic processing equipment and plastic materials, including injection ... engineering resins. * Understanding of mold and tooling design related to plastic processing.

Formosa Plastics

Staff Engineer

Livingston, NJ · On-site

$108K - $131K/yr

A. (Formosa Plastics) is a growing, vertically-integrated supplier of plastic resins and ... This position focuses on driving operational excellence through systems design, process ...

Formosa Plastics

Application Developer II

Livingston, NJ · On-site

$95K - $124K/yr

A. (Formosa Plastics) is a growing, vertically-integrated supplier of plastic resins and ... Identify root causes whether related to bugs, system design, data, or processes. QUALIFICATIONS ...

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Showing results 1-20

All JobsPlastics Process Engineer JobsPlastics Process Engineer Jobs in New Jersey

Plastics Process Engineer information

See New Jersey salary details

$50.3K

$93.4K

$144.7K

How much do plastics process engineer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for plastics process engineer in New Jersey is $93,420.00, according to ZipRecruiter salary data. Most workers in this role earn between $75,600.00 and $104,600.00 per year, depending on experience, location, and employer.

What does a plastics process engineer do?

A Plastics Process Engineer is responsible for developing, optimizing, and troubleshooting the manufacturing processes used to produce plastic products. They work with equipment such as injection molding, extrusion, and blow molding machines to ensure products meet quality standards and production goals. Their duties include selecting materials, designing process parameters, improving efficiency, and solving production issues. Plastics Process Engineers also collaborate with design, quality, and manufacturing teams to implement new technologies and continuous improvements.

What are the key skills and qualifications needed to thrive as a plastics process engineer?

To thrive as a Plastics Process Engineer, a strong background in polymer science, process optimization, and engineering principles is essential, often supported by a degree in chemical, materials, or mechanical engineering. Familiarity with CAD software, injection molding machines, and process control systems, as well as certifications like Six Sigma, are commonly required. Strong analytical thinking, problem-solving ability, and effective communication help engineers collaborate with cross-functional teams and resolve manufacturing challenges. These skills and qualifications are crucial for ensuring efficient production, maintaining product quality, and driving continuous improvement in plastics manufacturing environments.

How does a plastics process engineer typically collaborate with production and quality teams to optimize manufacturing processes?

Plastics Process Engineers work closely with production and quality teams to troubleshoot manufacturing issues, implement process improvements, and ensure product quality meets industry standards. They regularly participate in cross-functional meetings, analyze process data, and recommend adjustments to equipment settings or material usage. By fostering strong communication and teamwork, they help streamline workflows and reduce defects, ultimately supporting efficient and high-quality plastics production.

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

AspectPlastics Process EngineerPlastics Technician
CredentialsBachelor's degree in engineering or plastics technologyTechnical diploma or associate degree in plastics technology or related field
Work EnvironmentDesign, optimize, and troubleshoot manufacturing processesOperate and maintain plastic processing equipment on the production floor
Employer & IndustryManufacturers, R&D labs, process developmentProduction plants, manufacturing facilities

The main difference is that Plastics Process Engineers focus on designing and improving plastic manufacturing processes, often requiring a degree and analytical skills. In contrast, Plastics Technicians handle the day-to-day operation and maintenance of equipment, typically with technical training. Both roles are essential in the plastics industry but serve different functions within the production cycle.

What are popular job titles related to Plastics Process Engineer jobs in New Jersey?

For Plastics Process Engineer jobs in New Jersey, the most frequently searched job titles are:

What job categories do people searching Plastics Process Engineer jobs in New Jersey look for?

The top searched job categories for Plastics Process Engineer jobs in New Jersey are:

Plastics Process Engineer jobs near you
Infographic showing various Plastics Process Engineer job openings in New Jersey as of August 2026, with employment types broken down into 1% As Needed, 76% Full Time, 16% Part Time, 2% Temporary, 4% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $93,420 per year, or $44.9 per hour.

Plastics Process Engineer

Comar Engineering Services

Buena, NJ

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 8 days ago

Job description

Process Engineer

Hours: full-time position.
Competitive pay & benefits: health, dental, vision, paid time off, 401k with match…
and more!

“Come Build a Career with our Growing, Fast-Paced, Customer-Focused Company that fosters
Training and Professional Development!”

WHAT YOU WILL DO:
“Quality & Safety are Top Comar Priorities"

• Responsible for sampling molds and for the process development of all new and transferred injection molds.
• Work with the Engineering, Quality and Production teams to develop molds capable of running highly repeatable and robust molding processes.
• Employ science-based process development procedures and validation protocols.
• Work with other company teams to improve overall mold development and validation procedures.
• Assist in developing and teaching Cycle Tech Training program.

Safety and Cleanliness
“We have put in place Covid-19 practices for our employees’ safety”
• Follow all plant safety guidelines and GMP (Good Manufacturing Practices).
• Maintain a clean and safe work area and report any unsafe conditions to supervisor.
• Wear company issued personal protective equipment (PPE) such as gloves, masks, hairnets, earplugs.
Quality
• Meet or exceed Quality standards consistently.
• Report any quality problems immediately.

WHO WE ARE LOOKING FOR:
"A Comar employee who will represent the customer and be the consumer's advocate"

• Two or four degree preferred, but will consider High School diploma or general education degree (GED) with relevant experience.
• Hands-on Processing Engineering experience required.
• At least 3-5 years related experience and/or training in mold development.
• Working knowledge of Scientific Molding practices with a plus for having RJG Master Molder or similar certification, eDART cycle graph interpretation.
• Thorough understanding of injection mold tooling and the IQ/OQ/PQ validation process.
Preferred:
• Knowledge of IQMS.
• Previous experience in related functions and an ISO 9001/13485 environment.
• Preference to working in Medical Devices but will consider similar highly regulated environments.
Certifications or Licenses:
• Master Molder 1 certificate desired.

Can You…?
• Read and interpret documents such as safety rules, operating and maintenance instructions, blueprints, and procedure manuals.
• Carry out instructions furnished in written, oral, or diagram form.
• Write routine reports and correspondence.
• Speak effectively before groups of customers or employees.
• Add, subtract, multiply, and divide in all units of measure, using whole numbers, commons fractions, and decimals. Compute rate, ratio, and percent.
Do you have the Physical Stamina to…?
• Stand, walk, sit, and bend throughout the work shift.
• Regularly use hands and fingers to handle or feel; reach with hands and arms.
• Frequently lift and/or move up to 50 pounds with equipment.
• Use close vision, color vision, peripheral vision, depth perception, and adjust focus.

WORK ENVIRONMENT
Frequently exposed to moving mechanical parts. The noise level in the work environment is moderate and requires the use of hearing protection.

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