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Injection Molding Process Engineer Jobs (NOW HIRING)

We are seeking a skilled and experienced Process Engineer to join our team specializing in injection molding. The ideal candidate will play a critical role in optimizing manufacturing processes ...

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Injection Molding Process Engineer information

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$49.5K

$92K

$142.5K

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

As of Jun 25, 2026, the average yearly pay for injection molding process engineer in the United States is $92,018.00, according to ZipRecruiter salary data. Most workers in this role earn between $74,500.00 and $103,000.00 per year, depending on experience, location, and employer.

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 are Injection Molding Process Engineers?

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 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.

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.
More about Injection Molding Process Engineer jobs
What cities are hiring for Injection Molding Process Engineer jobs? Cities with the most Injection Molding Process Engineer job openings:
What are the most commonly searched types of Injection Molding Process Engineer jobs? The most popular types of Injection Molding Process Engineer jobs are:
What states have the most Injection Molding Process Engineer jobs? States with the most job openings for Injection Molding Process Engineer jobs include:
Infographic showing various Injection Molding Process Engineer job openings in the United States as of June 2026, with employment types broken down into 47% Full Time, and 53% Part Time. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $92,018 per year, or $44.2 per hour.

Injection Molding Process Engineer

Balda C Brewer

Ontario, CA • On-site

$75K - $100K/yr

Full-time

Posted 22 days ago


Job description

Overall responsible to develop and implement stable molding processes and controls to assure consistency on parts and meet quality standards. Maximize process efficiencies and support the Plastics manufacturing activity as well as various secondary processes. Perform mold validations. Investigate and resolve work-in-process problems. Contact suppliers in the process of correcting equipment problems. Support the Engineer, Production and Program manager team. Be self-motivated and implement a Teamwork environment.

Essential Job Functions and Responsibilities:

  • Develop, design and setup robust molding processes utilizing scientific and decoupled molding, by running SMPD, DOEs, OQs, and PQs run.
  • Create documentation of molding set-ups, processes, and workflows.
  • Quantify current process capabilities as a foundation for evaluating and improving processes and products.
  • Improve production efficiencies by improving cycle times, reducing scrap, improving setup time, workstation layout and yield, by implementing cGMP.
  • Troubleshoot defects and trace to the root cause to determine how to change the process or the mold to eliminate the future occurrence.
  • Audit processes to verify documented process match actual process being used.
  • Ensure Setup and Process Techs are processing jobs correctly.
  • Maintain up to date the “Part Number Info” in the database.
  • Answers customer complaints and implements corrective action when necessary to resolve issues.
  • Provide advanced engineering support in the areas of design, manufacturing process, material characteristics related to the development and manufacture of the product.
  • Lead process improvement team using modern manufacturing tools and methods, e.g., Lean, Kaizen, Six Sigma, cGMP, etc.
  • Coordinate mold validations and tests with scheduling, molding, tool room, and quality department. Evaluate each process for automation, cycle efficiencies, and reduction of labor.
  • Work with the tool room to improve manufacturing capabilities of new and existing tooling.
  • Train and assist with mentoring of Process Technicians, Setups and key operations personnel to develop and enhance process knowledge and skills.
  • Work with Engineering, Production, Quality and Maintenance groups to establish, execute and monitor preventive maintenance programs.
  • Work with the Program manager as support to meet project deadlines.
  • Lead, participate in, or support continuous improvement activities.
  • Work with vendors and suppliers, customers and other outside technical resources to develop and improve manufacturing methods that contribute to the reduced product cost and improved product performance.
  • Work with Internal and External customers during product development to assure the product meets part print and function.
  • Work close with Tool development Engineer, Tool Room Manager, Production Manager, Maintenances Manager and Quality Manager to maintain a teamwork environment
  • Ensure safe work environment and participate fully in Safety programs.

Core Competencies:

  • General Safety
  • IQMS Knowledge
  • Electrical Equipment Operation
  • Document and Records Control
  • Compliance Management
  • BluePrint Reading
  • Customer Service (internal or external)

Knowledge, Skills, and Abilities

· Awareness, agreement and advancement of company values and goals

· Advanced level knowledge of engineering plastics, resins, and polymers.

· Good verbal, written communication, and presentation skills and the ability to interface within a cross-functional team environment.

  • Extensive knowledge of injection molding machines and accessory equipment (robots, grinders, water systems/water treatment) a must.
  • Must have mechanical skills. Must be able to read part prints and use measuring equipment (calipers, comparators, etc.).
  • Must have good communication and basic computer skills.
  • Must have in-depth knowledge of multi-component molding, design of experiments, basic statistics, insert molding, mold-flow analysis, and various types of process monitoring tools and techniques.
  • Preferred to have experience and knowledge in Statistical Process Control (SPC) principles, Multi-variable Analysis (MVA), and various types of injection molding process data collection/analysis systems.

Education and/or Experience:

  • Bachelor of Science or equivalent experience required experience
  • More than 5 years of engineering experience in a Medical manufacturing environment.
  • RGJ Master Molder 1 Certification required.
  • RGJ Master Molder 2 (desired not required).
  • FimmTech Certification (desired not required).