Plastics Engineer

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.

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.

• 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 Solid Works 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.

• 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 Solid Works, 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.

• 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…