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Injection Molding Process Engineer Jobs in Boston, MA

Xometry

Application Engineer, Injection Molding

Waltham, MA · On-site

$65K - $85K/yr

Xometry is seeking a driven and technically-minded Application Engineer, Injection Molding to join our team. In this role, you'll be a critical link between our customers, sales team, and engineering ...

Plastic Molding Mfg, Inc.

Plastics Engineer

Hudson, MA · On-site

Lead development and optimization of injection molding processes for complex, tight-tolerance ... Bachelor's degree (or higher) in Engineering (Plastics or related field preferred) * Deep expertise ...

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All JobsInjection Molding Process Engineer JobsInjection Molding Process Engineer Jobs in Boston, MA

Injection Molding Process Engineer information

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$154.8K

How much do injection molding process engineer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for injection molding process engineer in Boston, MA is $99,968.00, according to ZipRecruiter salary data. Most workers in this role earn between $80,900.00 and $111,900.00 per year, depending on experience, location, and employer.

What is an injection molding process engineer?

Injection Molding Process Engineers are professionals who specialize in designing, optimizing, and troubleshooting the injection molding process used to manufacture plastic parts. They work with production teams to develop efficient molding processes, select appropriate materials, and ensure product quality. Their responsibilities also include setting up and maintaining equipment, analyzing defects, and implementing process improvements to maximize productivity and reduce costs.

What are some common challenges injection molding process engineers face when troubleshooting production issues?

Injection Molding Process Engineers often encounter challenges such as inconsistent part quality, cycle time variation, and machine malfunctions. Troubleshooting these issues requires a solid understanding of molding parameters, material properties, and mold design. Engineers typically collaborate closely with production operators, quality control, and maintenance teams to analyze root causes and implement effective solutions. Staying current with process optimization techniques and leveraging data-driven approaches are key to successfully overcoming these challenges and ensuring high-quality output.

What are the key skills and qualifications needed to thrive as an injection molding process engineer, and why are they important?

To thrive as an Injection Molding Process Engineer, you need a solid background in engineering principles, plastics materials, and process optimization, usually backed by a degree in mechanical or manufacturing engineering. Proficiency with CAD software, molding simulation tools (such as Moldflow), and familiarity with quality management systems or Six Sigma certifications is highly valuable. Strong analytical thinking, problem-solving abilities, and effective communication skills help you collaborate with cross-functional teams and drive process improvements. These skills are crucial for ensuring efficient production, high-quality output, and the continuous improvement of manufacturing operations.

What is the difference between Injection Molding Process Engineer vs Injection Molding Technician?

AspectInjection Molding Process EngineerInjection Molding Technician
ResponsibilitiesDesigns, develops, and optimizes molding processes, troubleshooting complex issues, and improving efficiency.Operates and maintains molding machines, performs routine setups, and monitors production quality.
Required SkillsStrong understanding of process engineering, materials, and troubleshooting; often requires engineering degrees or certifications.Hands-on machine operation skills; technical training or certifications in machine operation.
Work EnvironmentDesign labs, engineering departments, or production floors with a focus on process development.Production floors with direct machine operation and quality checks.

The Injection Molding Process Engineer focuses on process design, optimization, and troubleshooting, often requiring engineering credentials. In contrast, the Injection Molding Technician handles daily machine operation and maintenance. Both roles are essential in the manufacturing process but differ in scope and responsibilities.

How much do injection molding process engineers make?

Injection molding process engineers typically earn between $60,000 and $90,000 annually, with salaries increasing with experience, certifications, and location. Entry-level positions may start around $50,000, while senior engineers or those in high-demand areas can earn over $100,000. Skills in process optimization, troubleshooting, and familiarity with molding machines are valuable for higher compensation.

What are the most commonly searched types of Injection Molding Process Engineer jobs in Boston, MA?

The most popular types of Injection Molding Process Engineer jobs in Boston, MA are:

What are popular job titles related to Injection Molding Process Engineer jobs in Boston, MA?

For Injection Molding Process Engineer jobs in Boston, MA, the most frequently searched job titles are:

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The top searched job categories for Injection Molding Process Engineer jobs in Boston, MA are:

Injection Molding Process Engineer jobs near you
Infographic showing various Injection Molding Process Engineer job openings in Boston, MA as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 16% Part Time, 4% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $99,968 per year, or $48.1 per hour.

Plastics Engineer (Injection Molding)

Corporate Solutions Tech

Hudson, MA • On-site

Full-time

Re-posted 12 days ago

Job description

Job Summary

Our client is seeking an experienced Plastics Engineer (Injection Molding) to support manufacturing operations by developing, optimizing, and troubleshooting injection molding processes. This role plays a critical part in ensuring consistent product quality, improving efficiency, and supporting new product development.

The ideal candidate will bring deep technical expertise in plastics injection molding, tooling, and process optimization, while collaborating with cross-functional teams to drive continuous improvement and production excellence.

Key Responsibilities

  • Develop, optimize, and troubleshoot injection molding processes to improve efficiency and product quality
  • Manage key custom customer projects and serve as the primary technical point of contact
  • Read and interpret blueprints and 3D CAD files
  • Utilize SolidWorks and other CAD tools to support design and manufacturing processes
  • Review and approve tooling designs and engineering changes
  • Collaborate with manufacturing teams to ensure proper production setup and tooling performance
  • Work with external vendors for mold repairs and tooling support
  • Support new product launches, including tooling validation and process setup
  • Identify and implement process improvements to:
    • Reduce scrap
    • Improve cycle times
    • Enhance overall production performance
  • Provide technical guidance on materials, equipment, and molding techniques

Qualifications

Education:

  • Bachelor’s degree (or higher) in Engineering
  • Plastics Engineering or related field preferred

Experience:

  • Minimum 10 years of experience in plastics injection molding
  • Strong experience with tooling, materials, and molding processes
  • Experience supporting manufacturing operations and process improvement initiatives

Technical Skills & Knowledge

  • Proficiency with:
    • SolidWorks
    • AutoCAD
    • IQMS (or similar ERP/manufacturing systems)
  • Strong knowledge of:
    • Mold design and mold building
    • Raw materials and resin behavior
    • Injection molding equipment and techniques
  • Ability to analyze production data and implement process improvements
  • Strong troubleshooting and root cause analysis capabilities

General Knowledge, Skills, and Abilities

The successful candidate will demonstrate strength in the following areas:

  • Initiative: Takes ownership of projects and drives results independently
  • Communication: Effectively communicates technical information across teams
  • Customer Focus: Acts as a key liaison for customer-driven projects
  • Decision Making: Uses data and experience to make informed engineering decisions
  • Flexibility: Adapts to changing production demands and priorities
  • Interpersonal Skills: Works collaboratively with engineering, production, and vendors
  • Leadership: Provides technical guidance and mentorship when needed
  • Problem Solving: Identifies issues and implements effective solutions
  • Team Building: Contributes to a collaborative and high-performing environment
  • Quality Assurance: Ensures products meet strict quality and performance standards