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Injection Molding Tech Jobs in Minnesota (NOW HIRING)

Protolabs

Senior Mold Process Technician

Rosemount, MN · On-site

$33.17 - $41.01/hr

... technology * Advanced knowledge and application of all aspects of decoupled molding techniques and engineering grade resins. RJG or Paulsen Training is a plus. * Advanced knowledge of injection ...

Protolabs

Senior Mold Process Technician

Rosemount, MN

$33.17 - $41.01/hr

... technology * Advanced knowledge and application of all aspects of decoupled molding techniques and engineering grade resins. RJG or Paulsen Training is a plus. * Advanced knowledge of injection ...

Protolabs

Senior Mold Process Technician

Rosemount, MN · On-site

$25.50 - $30.75/hr

... technology * Advanced knowledge and application of all aspects of decoupled molding techniques and engineering grade resins. RJG or Paulsen Training is a plus. * Advanced knowledge of injection ...

The Dolphin Group

Molding Process Tech

Saint Paul, MN · On-site

$30 - $35/hr

As a Molding Process Technician, you'll develop and optimize injection molding processes, troubleshoot production issues, and help ensure quality, safety, and efficiency in manufacturing.

3M

Molding specialist

Woodbury, MN

$145K - $178K/yr

With a variety of people, global locations, technologies and products, 3M is a place where you can ... Experience in injection molding or plastics manufacturing * Working knowledge of injection molding ...

3M

Molding specialist

Woodbury, MN · On-site

$145K - $178K/yr

With a variety of people, global locations, technologies and products, 3M is a place where you can ... Experience in injection molding or plastics manufacturing * Working knowledge of injection molding ...

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Injection Molding Tech jobs near you
Infographic showing various Injection Molding Tech job openings in Minnesota as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 10% Part Time, 14% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Senior Mold Process Technician

Rosemount, MN • On-site

Protolabs
Industrial Machinery Manufacturing • 1 - 5K employees
Learn more about Protolabsexternal

$33.17 - $41.01/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 11 days ago

Protolabs rating

9.1

Company rating: 9.1 out of 10

Based on 24 frontline employees who took The Breakroom Quiz

Job description

Be yourself at Protolabs
Studies have shown that women and people of color are less likely to apply to jobs unless they meet every single qualification. We are an equal opportunity employer, and we are committed to building a diverse team that feels they are valued in the workplace. So do you feel you do not meet every single requirement but still intrigued? We encourage you to still apply! You can help make our company even better. We do not discriminate based on race, color, national origin, sexual orientation, gender, age, mental or physical ability, or any way you represent yourself. We strongly believe diversity makes for more successful teams.
Why Protolabs?
We are the leaders in digital manufacturing. We hire doers, makers, and creative thinkers who tackle our roles with an entrepreneurial spirit. Our culture is centered around meaningful work that brings new and innovative products to market at unprecedented speeds. We are a diverse team that comes from all walks of life and take pride in our team who is smart, genuine, humble, and passionate about what we do. It's our people who fuel our creativity and make our culture feel like home.
Join our team as a Senior Mold Process Tech!
This is an ONSITE role based in Rosemount, MN.
The Senior Mold Process Technician develops, validates and optimizes molding processes to produce high-quality parts efficiently and consistently. This role leads mold setup, troubleshooting, and continuous improvement activities, mentors junior technicians, and works closely with engineering to improve part quality, cycle time, and uptime
What You Will Do:
  • Proficiently set up and start up molds using decoupled/ scientific molding practices.
  • Retrieve prepared aluminum molds and installs into injection molding press.
  • Secure mold to platen and sets up appropriate mold heating and cooling.
  • Load material into the machine hopper
  • Inspect molds for correct set up and check to ensure proper materials are at the press prior to start.
  • Troubleshoot and diagnose problems related to mold cycling and mold function in the press.
  • Develop, optimize (incorporating design of experiments), stabilize and troubleshoot complex injection molding processes using a wide variety of engineered and commodity type resins on a wide range of injection molding machinery
  • Ensure presses are running correct cycle time and match what is documented
  • Accurately record process specifications onto cycle sheets.
  • Perform thorough part inspections and make appropriate decisions relative to part quality requirements
  • Investigate new materials and determines molding parameters
  • Able to calculate specific material shrink.
  • Request, evaluate and monitor mold modifications and repair through the rework system.
  • Investigate Non-Conformances and determine corrective action(s) to ensure successful molding of acceptable parts.
  • Collaborate with engineering department to enhance and debug processes, tooling, and new products
  • Critique part designs for Design for Manufacturability and optimum molding performance, and communicate to appropriate personnel
  • Critique tool designs for robust mechanical design and optimum molding performance, and communicate to appropriate personnel
  • Support area as "Injection Molding Subject Matter Expert", who thoroughly knows materials & the inner workings of injection molds & molding machines
  • Support daily production by identifying solutions for chronic issues and problems that cannot be resolved by production associates.
  • Mentor and train Associate Mold Process Technicians and Mold Process Technicians on the latest problem solving, set-up and processing techniques.
  • Train set up technicians and Material Handlers as assigned to insure that the set-ups being performed are done properly, in a safe manner, as well as a timely manner.
  • Build communication relationships with Build, milling, CQRs, CSEs and Supervisors.
  • Meet with the Shift Supervisor and other Process Technicians to discuss any and all issues relating to the shop floor.
  • Adhere to all quality and safety standards within the department.
  • Maintain clean and organized work area with emphasis on safety, quality, efficiency, and utilization.
  • Continually seek to improve work processes and individual performance.
  • Adhere to all company policies and operational procedures.
  • Perform additional tasks as assigned.

What It Takes:
Education and Experience:
  • 4 year technical degree OR 8+ years equivalent experience in plastic injection molding at an Engineering level
  • 8+ years of experience as an Injection Mold Technician or Mold Process Technician.

Knowledge, Skills, and Abilities:
  • Must have an in depth understanding of machine process control, Mold Design, and Molding technology
  • Advanced knowledge and application of all aspects of decoupled molding techniques and engineering grade resins. RJG or Paulsen Training is a plus.
  • Advanced knowledge of injection molding machines.
  • Working knowledge of Mold Design, operation and Maintenance
  • CAD experience and Plastic flow analysis are a plus.
  • Experience using and applying appropriate metrology to confirm design specifications are achieved.
  • Exhibits leadership skills that are consistent with Protolabs' values; work ethics, technical knowledge, employee oriented.
  • Stays current on best practice implementation/management and monitoring
  • Must be able to interact with employees, customers and vendors in a cooperative, respectful and professional manner.
  • Strong mechanical aptitude and troubleshooting skills.
  • Demonstrated passion about reducing cycle times, improving part quality and machine utilization in line with Protolabs' objectives.
  • Good written and oral communication skills.
  • Strong attention to detail.
  • Able to be licensed to operate material handling equipment (forklift, pallet jack, overhead crane hoist, etc.) - we will train.
  • Able to safely operate hand held and stationary power tools.
  • Able to work safely with sharp and heavy objects (e.g., utility knives, aluminum blocks).
  • Able to use measuring instruments such as scales, calipers, dial indicators.
  • Able to use a computer and calculator. Able to read and write in English, and do basic arithmetic.
  • Able to work in a fast-paced, team-oriented work environment.
  • Must be punctual and have good attendance.
  • In the subjective judgment of managers, supervisors, and master molders, the candidate must possess the temperament and depth and range of skills necessary to be successful in this position.

What's In It For You:
  • We offer a competitive salary and total rewards package
  • We offer amazing benefits including but not limited to:
    • Health Insurance: Traditional OR High Deductible plan
    • Flexible Spending Accounts
    • Health Savings Account (including employer contributions)
    • Dental and Vision
    • Basic and Supplemental Life Insurance
    • Short-Term and Long-Term Disability
    • Paid caregiver leave
  • You will receive at least 3 weeks of PTO + Wellness + Holiday Pay + Volunteer Hours
  • 401k with company match and immediate vest
  • Employee Stock Purchase Program at a discounted rate
  • Matching grants through Protolabs foundation
  • And More!

$33.17 - $41.01 an hour
Protolabs offers a competitive total rewards package, and compensation mix vary based on position, such as base wage, as well as other earnings including incentives and commissions. Actual pay offered will vary depending on multiple factors which may include, without limitation, job function, work experience, specialized skills, training, education, and certifications.
Proto Labs maintains ITAR-compliant operations in all of our United States based facilities. Due to ITAR regulations, this role is only open to U.S. Citizens, lawful permanent residents (green card holders) or foreign nationals granted refugee or asylee status. Individuals with temporary visas (e.g. E, F-1, H-1, H-2, L, B, J, TN or OPT) are not eligible for hire in this role.
Proto Labs, Inc. is an Equal Opportunity Employer
Physical Demands:
While performing the essential duties of this job, the employee is occasionally required to sit; use a computer keyboard, monitor and mouse, telephone and printer; reach with hands, and arms, talk, see and hear. The employee is regularly required to stand, walk, stoop or kneel and must be able to lift and/or move up to 50+ pounds.
Work Environment:
Indoors (A/C); nonsmoking; the majority of this job function is performed in a manufacturing area exposed to machinery and noise; with eye protection and safety shoes required. Occasionally works in outside weather conditions. Occasionally works near moving mechanical parts and in high, precarious places and is occasionally exposed to wet and/or humid conditions, fumes or airborne particles, toxic or caustic chemicals, risk of electrical shock and vibration. The noise level in the work environment is usually quiet to moderate.

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