1

Injection Molding Process Engineer Jobs in Phoenix, AZ

... processes and execute the preventative maintenance program to national expectations. · Set goals ... Engineering certification preferred · Injection molding experience preferred. Specific experience ...

Oversee implementation of preventive maintenance processes and execute the preventative maintenance ... Engineering certification preferred Injection molding experience preferred. Specific experience ...

... processes and execute the preventative maintenance program to national expectations. • Set goals ... Reliability Engineering certification preferred • Injection molding experience preferred.

Machine Operator - 2nd shift

Phoenix, AZ · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

Machine Operator-3rd Shift

Phoenix, AZ · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

Machine Operator- 1st Shift

Phoenix, AZ · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

Machine Operator- 1st Shift

Phoenix, AZ · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

Machine Operator-3rd Shift

Phoenix, AZ · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

Machine Operator- 2nd Shift

Phoenix, AZ · On-site

$17 - $20/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Operate blow-mold/PET/injection molding machines (including wheels, reciprocating or shuttle machines) to ensure production of quality bottles. * Adhere to quality control and to blow mold process ...

Showing results 41-60

Injection Molding Process Engineer information

See Phoenix, AZ salary details

$49.1K

$91.4K

$141.5K

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

As of Aug 15, 2026, the average yearly pay for injection molding process engineer in Phoenix, AZ is $91,365.00, according to ZipRecruiter salary data. Most workers in this role earn between $74,000.00 and $102,300.00 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 does an injection molding process engineer do?

An injection molding process engineer designs, develops, and optimizes the manufacturing process for plastic parts using injection molding machines. They analyze cycle times, troubleshoot equipment issues, and ensure product quality by controlling process parameters and implementing improvements. Proficiency with process monitoring tools and understanding of material properties are essential in this role.

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 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 a median annual salary ranging from $60,000 to $85,000, depending on experience, location, and industry. Salaries can increase with specialized skills, certifications, and advanced knowledge of molding equipment and materials.

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 most commonly searched types of Injection Molding Process Engineer jobs in Phoenix, AZ?

The most popular types of Injection Molding Process Engineer jobs in Phoenix, AZ are:

What job categories do people searching Injection Molding Process Engineer jobs in Phoenix, AZ look for?

The top searched job categories for Injection Molding Process Engineer jobs in Phoenix, AZ are:

Infographic showing various Injection Molding Process Engineer job openings in Phoenix, AZ as of August 2026, with employment types broken down into 92% Full Time, and 8% Nights. Highlights an 100% In-person job distribution, with an average salary of $91,365 per year, or $43.9 per hour.

Full-time

Posted 22 days ago


West Pharmaceutical Services rating

8.5

Company rating: 8.5 out of 10

Based on 32 frontline employees who took The Breakroom Quiz

12th of 119 rated packaging manufacturers


Job description

At West, we're a dedicated team that is connected by a purpose to improve patient lives that has been at the center of our Company for more than a century. Our story began when Herman O. West solved the problem of supplying penicillin in mass quantities to the US Government during World War 2. Through our work to deliver thousands of life-saving and life-enhancing injectable medicines to millions of patients daily, West's indelible mark on the healthcare industry has just begun. A name started our story. How will yours help write our future?  

There's no better place to join an inclusive community of professionals with opportunities for lifelong learning, growth and development. Supported by benefit programs, we empower the physical, mental, emotional and financial health of our team members and their families.  

We believe in giving back to help those in need in the communities where we live and work. And are equally committed to creating a healthier environment and planet through our sustainability efforts.  

Job Summary

In this role, you will ensure that the molding and extrusion processes operate at maximum output while maintaining the highest quality, with minimal supervision.

Essential Duties and Responsibilities
  • Prepare molds and molding presses for production operations, including but not limited to setup, cleanup, and conditioning runs, and perform eccentricity checks.
  • Ensure injection molding machines, auxiliary equipment, and connected automated systems are set to regulatory parameters, meet quality standards, and achieve all production goals.
  • Set up and start molding machines, read blueprints, and check products using calipers, optical comparators, and other testing methods and devices.
  • Perform or assist with molding press line clears when required.
  • Monitor scrap rates and cycle times.
  • Develop, recommend, and implement corrective actions to improve efficiencies.
  • Perform and assist with mold changes on all types of molding presses.
  • Perform installation, removal, delivery, retrieval, transport of molds and other associated machinery and equipment; ensure that adequate materials and equipment are at the required location to perform this work in the safest, most effective, and most efficient manner possible.
  • Troubleshoot, problem solve, and apply solutions as required or requested; ensure processes run within the predetermined control parameters, including making adjustments within allowable limits, evaluating operator techniques, and evaluating materials to ensure acceptable products.
  • Monitor SPC data and control charts for quality.
  • Work with mold cleaning to determine and optimize various tasks such as the length of time between mold cleaning, the best type of surface preparation for each mold and product, and work on faster mold changeovers.
  • Initiate and write Tooling Repair Requests when pins, bushings, molds, or mold cavities need replacement.
  • Initiate and write maintenance repair requests as needed.
  • Assist Engineering and Maintenance teams as requested.
  • operate forklifts if required.
  • Conform with and abide by all laws, regulations, policies, work procedures, instructions, and all safety rules.
  • Exhibit regular, reliable, punctual, and predictable attendance.
  • Perform other duties as assigned based on business needs.
Education
  • High School Diploma or GED Required.
  • Associate's degree or working toward degree in technical discipline preferred.
  • Current or prior molding/automation certification prefered.
Work Experience

Experience: Minimum 5 years of experience in molding operations or related mechanical/automation experience required.

Preferred Knowledge, Skills and Abilities

   Must possess knowledge of machinery, including hydraulics, electrical and solid state components, and secondary equipment such as grinders, trim presses, and chillers.
   Must be able to independently solve technical and/or mechanical issues.
   Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals. 
   Ability to write reports and correspondence.
   Ability to interpret a variety of instructions furnished in written, verbal, diagram or schedule form.  
   Ability to work with various computer software programs and manage multiple priorities.
   Willing to work overtime as needed.
   Certification in First Aid or CPR.
   Able to be aware of all relevant standard operating procedures as per Company policy as they are related to the position covered by this Job Description. 
   Support and contribute to Lean Sigma programs and activities towards delivery of the set target.
   Able to comply with the company's safety policy at all times.
   Able to comply with the company's quality policy at all times. 

Travel Requirements
None: No travel required
Physical Requirements
Medium-Exerting up to 50lb/22kg of force occasionally and/or up to 20lbs/9kg of force frequently, and/or up to 10lbs/4kgs of force constantly to move objects.
Additional Requirements

   Occasionally required to work on different shifts.
   Regularly uses hands and fingers to operate objects, tools or controls. 
   Frequently required to stand, talk and hear for long periods of time.
   Must be able lift and/or move up to 50 pounds during mold setups and removals.
   Specific vision abilities may be needed by this job, including close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.

What We Offer
Shift

This position is a 12 hour day shift, 5:00 AM - 5:15 PM, three days one week, four days the following week. 

West embraces diversity and equality of opportunity. We foster an environment where all individuals are safe, treated fairly, valued and respected. We do not discriminate on the basis of race, religion, color, national origin, gender, sex, gender identity, sexual orientation, age, marital status, veteran status, disability status or other applicable legally protected characteristics. Where permitted by law, employment with West Pharmaceutical Services, Inc. or any of its subsidiary or affiliate companies, is contingent upon the satisfactory completion of post-offer background screening. 

#LI-ME1


What West Pharmaceutical Services employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom