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Plastic Molding Engineer Jobs (NOW HIRING)

Plastic Molding Manufacturing

Plastics Engineer

Hudson, MA · On-site

$110K - $130K/yr

Drive Innovation at a Leader in Custom Injection Molding Since 1968, Plastic Molding Manufacturing ... S. facilities, we combine scale with deep engineering expertise--making us a go-to partner for ...

Plastic Molding Mfg, Inc.

Plastics Engineer

Hudson, MA · On-site

Since 1968, Plastic Molding Manufacturing (PMM) has been an owner-operated leader in American-made ... Plastics Engineer (Plastic Injection Molding) * Location: Hudson, MA (on-site) * Schedule: Monday ...

Tg Missouri Corporation

Description Summary The Toyoda Gosei Group is a leading global manufacturer of rubber and plastic ... The Injection Molding Engineer functions with a high degree of autonomy, and is responsible for ...

LFP Associates

Molding Engineer III

Columbus, OH · On-site

$80K - $90K/yr

Bachelor's Degree Plastics / Mechanical Engineering / Industrial Engineering * 5 to 10 years of injection molding and robotics experience * Proficiency with CAD / 3-d modeling * Proficiency with ...

Dbsmith

$120K - $130K/yr

Develop, implement, document, and optimize manufacturing processes for plastic injection molding ... Demonstrated engineering leadership experience, including supervising, coaching, and developing ...

Dbsmith

PLASTICS PROCESS ENGINEER MANAGER

Manhattan, NY · On-site

$120K - $130K/yr

Develop, implement, document, and optimize manufacturing processes for plastic injection molding ... Demonstrated engineering leadership experience, including supervising, coaching, and developing ...

West Pharmaceutical Services

Molding Engineer

Tempe, AZ · On-site

Interact with engineering, management, site and corporate team members, and/or vendors to develop ... Minimum 3 years plastic injection mold processing experience required Preferred Knowledge, Skills ...

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Plastic Molding Engineer information

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$36.5K

$65.3K

$108.5K

How much do plastic molding engineer jobs pay per year?

As of Sep 10, 2026, the average yearly pay for plastic molding engineer in the United States is $65,265.00, according to ZipRecruiter salary data. Most workers in this role earn between $48,500.00 and $79,500.00 per year, depending on experience, location, and employer.

What does a plastic molding engineer do?

A Plastic Molding Engineer is responsible for designing, developing, and optimizing processes related to molding plastic parts and products. They work with various molding technologies such as injection molding, blow molding, and extrusion to ensure efficient production and high-quality output. Their duties often include selecting appropriate materials, troubleshooting manufacturing issues, and maintaining equipment. They also collaborate with design and quality teams to meet product specifications and industry standards.

What are the key skills and qualifications needed to thrive as a plastic molding engineer?

To thrive as a Plastic Molding Engineer, you need a solid background in materials science, mechanical engineering, and process optimization, usually supported by a degree in engineering or a related field. Familiarity with CAD software, injection molding machines, and quality control systems, along with certifications like Six Sigma or RJG, is often required. Strong analytical thinking, problem-solving abilities, and effective communication skills help you collaborate with cross-functional teams and address production challenges. These skills and qualifications ensure efficient manufacturing processes, product quality, and successful project outcomes in the plastics industry.

What are some common challenges faced by plastic molding engineers in a manufacturing environment?

Plastic Molding Engineers often encounter challenges such as maintaining consistent product quality, troubleshooting defects like warping or incomplete fills, and optimizing cycle times to balance productivity with part integrity. They also need to adapt to frequent changes in materials or tooling and collaborate closely with design, production, and quality teams to resolve issues quickly. Staying current with advancements in molding technologies and process automation is essential for ongoing success in this dynamic role.

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

AspectPlastic Molding EngineerPlastic Process Engineer
CredentialsBachelor's in Engineering, certifications in plastics or manufacturingBachelor's in Engineering, certifications in plastics or manufacturing
Work EnvironmentManufacturing plants, R&D labsManufacturing plants, process optimization settings
Industry UsageDesign and develop molding processes, troubleshoot moldsOptimize and improve existing plastic processing methods

Both roles require similar educational backgrounds and certifications, often working in manufacturing environments. The Plastic Molding Engineer focuses on designing and troubleshooting molds, while the Plastic Process Engineer concentrates on refining processing techniques to improve efficiency and quality.

What cities are hiring for Plastic Molding Engineer jobs?

Cities with the most Plastic Molding Engineer job openings:

What states have the most Plastic Molding Engineer jobs?

States with the most job openings for Plastic Molding Engineer jobs include:

What are popular job titles related to Plastic Molding Engineer jobs?

For Plastic Molding Engineer jobs, the most frequently searched job titles are:

Plastic Molding Engineer jobs near you

Plastics Engineer

Hudson, MA • On-site

Plastic Molding Manufacturing
Plastics Product Manufacturing • 201 - 500 employees
Learn more about Plastic Molding Manufacturingexternal

$110K - $130K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago

Key responsibilities

  • Lead development and optimization of injection molding processes for complex, tight-tolerance components.

  • Own key customer programs by serving as the primary technical point of contact from design through production.

  • Evaluate and approve tooling designs, modifications, and performance.

Job description

Drive Innovation at a Leader in Custom Injection Molding

Since 1968, Plastic Molding Manufacturing (PMM) has been a privately held, owner-operated leader in the custom injection molding industry—trusted to deliver complex, high-precision solutions across critical markets including Medical, Defense, Electronics, Industrial, Transportation, and Consumer products.

Our capabilities go far beyond standard molding. From advanced product development to tight-tolerance, thin- and thick-wall applications, part joining, and assembly, PMM sets the benchmark for quality, consistency, and technical excellence.
With over 100 presses across four state-of-the-art U.S. facilities, we combine scale with deep engineering expertise—making us a go-to partner for customers who require precision, reliability, and performance at the highest level.
Since 1968, Plastic Molding Manufacturing (PMM) has been an owner-operated leader in American-made innovation and quality. We focus on plastics molding development, thin and thick wall molding, tight tolerance molding, part joining and assembly. We proudly serve a number of markets including Industrial, Medical, Electronics, Defense, Transportation and Consumer.

With over 100 presses across our four state-of-the-art facilities in MA, CT, PA, and IN, we’re committed to strengthening U.S manufacturing by delivering exceptional production, employment, and economic opportunities nationwide
  • Position: Plastics Engineer (Plastic Injection Molding).
  • Location: Hudson, MA (on-site).
  • Schedule: Monday to Friday (based on business needs).
  • Compensation: $110K - $130K (Dependent on Experience).
  • Employment Type: Full-Time.

Position Overview:
We are seeking a highly experienced Plastics Engineer to take a lead role in driving process development, technical problem-solving, and new program success within our injection molding operations.

This is a senior, high-impact position where you will own complex projects from concept through production—working directly with customers, tooling partners, and internal teams to deliver optimized, production-ready solutions. Your expertise will directly influence quality, efficiency, and the long-term success of our manufacturing operations.

Essential Functions:
  • Lead development and optimization of injection molding processes for complex, tight-tolerance components.
  • Own key customer programs—serving as the primary technical point of contact from design through production.
  • Evaluate and approve tooling designs, modifications, and performance.
  • Partner with tooling vendors and internal teams to ensure molds are production-ready and performing at peak efficiency.
  • Drive continuous improvement initiatives to reduce scrap, improve cycle times, and increase overall process capability.
  • Utilize SolidWorks and CAD data to support product development, manufacturability, and quoting.
  • Troubleshoot processing and tooling challenges with a hands-on, solution-driven approach.
  • Collaborate cross-functionally with manufacturing, quality, and leadership to ensure seamless execution.

What We’re Looking For:
  • 10+ years of hands-on experience in plastic injection molding engineering.
  • Bachelor’s degree (or higher) in Engineering (Plastics or related field preferred).
  • Deep expertise in processing, tooling, materials, and mold design.
  • Strong proficiency in SolidWorks, AutoCAD, and ERP systems (IQMS preferred).
  • Proven ability to lead projects, solve complex problems, and drive measurable improvements.
  • Strong communication skills with the ability to interface directly with customers and vendors.

Why PMM:
  • Established leader in custom injection molding with over 55 years of technical excellence.
  • Advanced manufacturing footprint with significant scale and capability.
  • A company that values engineering expertise and empowers decision-making.
  • Competitive compensation and comprehensive benefits, including: 
    • PTO, holidays, and vacation.
    • Health, dental, and vision insurance (multiple plan options).
    • FSA and 401(k) with company match.
    • Company-paid life insurance, AD&D, and short-term disability.
    • Optional long-term disability coverage.
    • Employee referral bonuses.

Note:
  • This description is not intended to be all-inclusive. The employee may perform other related duties as negotiated to meet the ongoing needs of the organization.
  • Pre-employment background checks are required for all applicants who accept an offer. Offers are contingent upon a report which is acceptable to the company.
  • The company provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, amnesty or status as a covered veteran in accordance with applicable federal, state and local laws.