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Senior Injection Molding Process Engineer Jobs in Phoenix, AZ

Actalent

Process Engineer

Scottsdale, AZ

$88K - $100K/yr

Process Engineer This Process Engineer role supports automated assembly and plastic injection ... Work hands-on with injection molding equipment, tooling, and related manufacturing systems to ...

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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Senior Injection Molding Process Engineer information

See Phoenix, AZ salary details

$74.5K

$120.3K

$169.3K

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

As of Aug 8, 2026, the average yearly pay for senior injection molding process engineer in Phoenix, AZ is $120,257.00, according to ZipRecruiter salary data. Most workers in this role earn between $103,300.00 and $133,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior injection molding process engineer?

To thrive as a Senior Injection Molding Process Engineer, you need a deep understanding of polymer science, mold design, process optimization, and typically a degree in engineering or a related field. Expertise with CAD software, process simulation tools, and familiarity with quality systems like ISO 9001 are commonly required, along with certifications such as RJG or Six Sigma. Strong analytical thinking, problem-solving abilities, and effective communication are essential soft skills for collaborating with cross-functional teams and troubleshooting production issues. These skills ensure efficient production, high-quality output, and continuous improvement in complex manufacturing environments.

What does a senior injection molding process engineer do?

A Senior Injection Molding Process Engineer is responsible for designing, optimizing, and troubleshooting the injection molding process used to manufacture plastic parts. They oversee process improvements, ensure product quality, and collaborate with cross-functional teams to meet production goals. Additionally, they may develop and implement new molding technologies, train staff, and support maintenance of equipment to ensure efficient and reliable operations.

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

AspectSenior Injection Molding Process EngineerInjection Molding Technician
CredentialsBachelor's degree in engineering or related field, certifications in process optimizationTechnical diploma or associate degree, on-the-job training
Work EnvironmentDesigning processes, analyzing data, improving production efficiencyOperating machinery, performing setup and maintenance
ResponsibilitiesProcess development, troubleshooting, process validationMachine operation, quality checks, routine maintenance

The Senior Injection Molding Process Engineer focuses on process design, optimization, and troubleshooting, requiring higher-level technical skills and education. In contrast, the Injection Molding Technician handles daily machine operation and maintenance tasks. Both roles are essential in the manufacturing environment but differ in scope and responsibilities.

What are the common challenges faced by senior injection molding process engineers when introducing a new mold into production?

Senior Injection Molding Process Engineers often encounter challenges such as optimizing process parameters for new molds, ensuring part quality meets specifications, and troubleshooting issues like warpage or incomplete filling. Collaboration with design, tooling, and quality teams is essential to address these challenges and implement effective solutions quickly. Additionally, balancing production efficiency with consistent quality requires careful monitoring and adjustment during the initial production runs.
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:
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Senior Injection Molding Process Engineer jobs near you
Infographic showing various Senior Injection Molding Process Engineer job openings in Phoenix, AZ as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $120,257 per year, or $57.8 per hour.

Injection Molding Process Engineer

Landscape Products Inc.

Tolleson, AZ • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 27 days ago

Job description

Manufacturing Process Engineer
???? Location: Tolleson, AZ
???? Type: Full-time

Are you a problem solver with a passion for optimizing manufacturing processes? Join our team and drive efficiency in our landscape supply products warehouse.

What You’ll Do:

The Injection Molding Process Engineer is a hands-on technical expert responsible for planning, directing, and optimizing manufacturing processes and equipment to produce high-quality injection molded products. This role plays a key part in launching new programs, refining existing operations, and driving continuous improvement. Additionally, the Process Engineer mentors and trains team members, evaluates process effectiveness, and communicates insights and results to management.

Key Responsibilities

  • Develop, document, and implement new and existing processes to enhance quality, productivity, and equipment efficiency.
  • Provide technical guidance and mentorship to process technicians, operators, and other molding personnel.
  • Author and maintain clear, comprehensive process documentation for cross-functional understanding and execution.
  • Troubleshoot and develop molding processes independently, including start-up and shutdown of production equipment.
  • Collaborate with equipment and material vendors to diagnose and resolve operational challenges.
  • Monitor injection mold performance, recommending maintenance or refurbishment based on usage data and performance metrics.
  • Interface with customers to resolve technical issues and provide updates on project progress.
  • Apply statistical methods and data-driven solutions to meet customer expectations for cost, quality, and delivery.
  • Support site-wide initiatives in safety, environmental compliance, and ergonomic improvements.

Requirements

  • Bachelor’s degree in Plastics, Chemical, or Mechanical Engineering preferred, with 3–5 years of hands-on injection molding experience; equivalent education and experience considered.
  • Strong background in injection molding processing, tooling, materials, machinery, and quality systems.
  • Proven ability to independently manage multiple projects and drive process improvements.
  • Effective communicator with strong organizational and leadership skills.
  • RJG Master Molder certification is a plus.
  • Experience in supervising or mentoring process technicians is preferred.

Benefits

Why You’ll Love This Job:

  • Collaborate with a team of English- and Spanish-speaking staff.
  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k, IRA)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Family Leave (Maternity, Paternity)
  • Short Term & Long Term Disability