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Plastic Injection Molding Jobs in Ontario (NOW HIRING)

Spectrum Plastics Group

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

At Spectrum Plastics Group, we are driven by a mission to deliver innovative design solutions that ... Your deep expertise in injection molding processes, tooling, and part design will be key to driving ...

Sybridge Technologies

Injection Mold Designer

Windsor, ON · On-site

CA$28 - CA$40/hr

  • Retirement

Design complete plastic injection molds using advanced 3D CAD assembly modeling * Build and maintain detailed mold assemblies that meet customer and internal design standards * Create and release ...

SyBridge Technologies

Injection Mold Designer

Windsor, ON

CA$28 - CA$40/hr

  • Retirement

Design complete plastic injection molds using advanced 3D CAD assembly modeling * Build and maintain detailed mold assemblies that meet customer and internal design standards * Create and release ...

Integrity Tool & Mold Inc

Mold Polisher

Oldcastle, ON · On-site

  • Medical

  • Dental

  • Retirement

... molding areas smooth * Maintain a safe work environment * Follow ISO standards and company procedures Required Qualifications: * Minimum 7 years' experience * Knowledge of plastic injection molds

Circle 5

Mold Designer

Windsor, ON · On-site

  • Medical

  • Dental

  • Vision

The designing of plastic injection molds according to customer requirements and specifications from start to finish * Review plastic injection mold designs and provide feedback * Providing ...

Team Integrity

Mold Polisher

Oldcastle, ON · On-site

  • Medical

  • Dental

  • Retirement

... molding areas smooth * Maintain a safe work environment * Follow ISO standards and company procedures Required Qualifications: * Minimum 7 years' experience * Knowledge of plastic injection molds

Team Integrity

Experienced Mold Designer

Oldcastle, ON · On-site

  • Medical

  • Dental

  • Retirement

Minimum 5 years' experience in plastic injection mold design * Experience with Cimatron software an asset * Strong work ethic * Ability to follow line-up from leader and learn company procedures

Actalent

Mechanical Designer

Ottawa, ON · Hybrid

CA$35 - CA$45/hr

Design and optimize plastic injection molded parts and other components for manufacturability, cost, and assembly. * Apply Design for Manufacturing (DFM), Design for Assembly (DFA), and Design for ...

Menasha Corporation

... plastic packaging products and related services to major global companies. Our employees make the ... About The Opportunity Ensure high-quality operation of injection molding tools and equipment ...

Integrity Tool & Mold Inc

Gundrill Operator

Oldcastle, ON · On-site

  • Medical

  • Dental

  • Retirement

These team members are responsible for setting-up, programming and machining cores, cavities, and various other components of plastic injection molds to tight tolerances in order to ensure the ...

Team Integrity

Gundrill Operator

Oldcastle, ON · On-site

  • Medical

  • Dental

  • Retirement

These team members are responsible for setting-up, programming and machining cores, cavities, and various other components of plastic injection molds to tight tolerances in order to ensure the ...

Team Integrity

Experienced Moldmaker

Oldcastle, ON · On-site

  • Medical

  • Dental

  • Retirement

Integrity has been specializing in custom plastic injection molds primarily for the automotive industry since 2000. Our main areas of expertise include, but are not limited to, standard injection ...

SyBridge Technologies

Scheduler

Windsor, ON · On-site

Key Responsibilities Develops,maintains, and updates detailed production schedules for plastic injection mold manufacturing projects. Plans and sequences work through key manufacturing stages ...

Starlim

Process Technician Team Leader

London, ON

  • Medical

  • Dental

  • PTO

Ability to operate Engel injection Molding Machines * Ability to read technical drawings and specifications * Understanding of LSR and plastic material properties as it relates to injection molding ...

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All JobsPlastic Injection Molding JobsPlastic Injection Molding Jobs in Ontario

Plastic Injection Molding information

See Ontario salary details

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$16

$25

How much do plastic injection molding jobs pay per hour?

As of Aug 17, 2026, the average hourly pay for plastic injection molding in Ontario is $16.13, according to ZipRecruiter salary data. Most workers in this role earn between $12.50 and $18.27 per hour, depending on experience, location, and employer.

What is plastic injection molding?

Plastic injection molding is a manufacturing process used to produce parts by injecting molten plastic material into a mold. The process involves melting plastic pellets, injecting the liquid into a custom-designed mold cavity, and then cooling the material until it solidifies into the final shape. This method is widely used due to its ability to produce high volumes of identical parts with complex shapes and fine details. It's commonly used in industries such as automotive, consumer goods, electronics, and medical devices.

What are the key skills and qualifications needed to thrive as a plastic injection molding technician?

To thrive as a Plastic Injection Molding Technician, you need a solid understanding of manufacturing processes, mechanical aptitude, and familiarity with material properties, usually supported by a high school diploma or technical certification. Proficiency in using injection molding machines, process control software, and quality inspection tools is essential. Attention to detail, problem-solving skills, and effective communication help you stand out in this role. These skills ensure the efficient production of high-quality parts, minimize downtime, and maintain safety and productivity on the manufacturing floor.

What are some common challenges faced by plastic injection molding technicians, and how can they be addressed?

Plastic Injection Molding Technicians often encounter challenges such as machine downtime, material inconsistencies, and maintaining product quality. Addressing these requires strong troubleshooting skills, attention to detail, and good communication with maintenance and quality control teams. Proactively inspecting equipment, adhering to preventive maintenance schedules, and collaborating closely with engineers help minimize defects and ensure efficient production. Continuous learning and staying updated with new molding technologies also support long-term success in this role.

What is the difference between Plastic Injection Molding vs Plastic Mold Designer?

AspectPlastic Injection MoldingPlastic Mold Designer
Primary RoleManufactures plastic parts by injecting molten plastic into moldsDesigns and develops molds used in plastic injection molding processes
Required SkillsMachine operation, material knowledge, quality controlCAD design, mold design, engineering principles
Work EnvironmentFactories, manufacturing plantsDesign studios, engineering offices
CertificationsMachine operation, safety certificationsCAD software certifications, engineering credentials

While Plastic Injection Molding involves the actual manufacturing of plastic parts, Plastic Mold Designers focus on creating the molds used in this process. Both roles are essential in the plastic manufacturing industry, with overlapping skills in engineering and design, but they differ in daily tasks and work environments.

What are the most commonly searched types of Plastic Injection Molding jobs in Ontario?

The most popular types of Plastic Injection Molding jobs in Ontario are:

What are popular job titles related to Plastic Injection Molding jobs in Ontario?

For Plastic Injection Molding jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Plastic Injection Molding jobs in Ontario look for?

The top searched job categories for Plastic Injection Molding jobs in Ontario are:

What cities in Ontario are hiring for Plastic Injection Molding jobs?

Cities in Ontario with the most Plastic Injection Molding job openings:

Plastic Injection Molding jobs near you
Infographic showing various Plastic Injection Molding job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 18% Part Time, 1% Contract, and 2% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $33,545 per year, or $16.1 per hour.

Senior Injection Molding Technician

Spectrum Plastics Group

On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted yesterday

Job description

At Spectrum Plastics Group, we are driven by a mission to deliver innovative design solutions that enable life-saving procedures and meet unique performance needs. Through collaboration and cutting-edge expertise, we have become a leader in component and device development, creating transformative products for communities worldwide. As an employer of choice, we are committed to providing a safe, healthy workplace while prioritizing employee well-being and satisfaction.

Your Role with Us: 

Your deep expertise in injection molding processes, tooling, and part design will be key to driving efficiency and precision ensuring the delivery of safe, high-quality products.

What We Offer:

Spectrum Plastics Group offers a competitive benefits package that prioritizes your mental and physical health, financial stability, family obligations, and professional growth.

  • Complete comprehensive medical, dental, and vision plans
  • Basic and voluntary life insurance
  • Short and long-term disability
  • Employee Assistance Program (EAP)
  • 401(K) retirement plans with employer contributions.
  • Generous vacation and personal time off

 Core Functions: 

  • Set up Injection molds for development as well as production operation.
  • Develop and document injection molding processes utilizing scientific principles
  • Perform and document capability studies and process validations using established protocols and methodologies
  • Perform molding machine qualification tests and document results
  • Create part specific and general work instructions related to injection molding processes
  • Operate injection molding machines for production jobs
  • Work with Engineering to update information about injection molding processes for accurate BOM and related documentation
  • Work with quality team members to support proper inspection methods and features.
  • Complete documentation accurately and adheres to Good Manufacturing Practices (GMP).
  • Perform other projects and duties as assigned

Background/Expertise: 

  • High diploma or general education equivalent (GED) required
  • At least two (2) years of technical degree or equivalent experience
  • At least five (5) years of process development and/or process technician experience
  • Comprehensive knowledge of injection molding processes and machines
  • Thorough knowledge of thermoplastic materials
  • Working knowledge of scientific injection molding principles
  • Thorough knowledge of auxiliary equipment
  • Demonstrated ability to meet schedules and priorities, have excellent attention to detail, and initiative.
  • Strong collaboration skills and ability to produce consistently high-quality results in a team environment.
  • Knowledge of extrusion, molding, thermal processing
  • Experience with ISO13485:2016 and design controls.

Work Environment/Physical Demands

  • Frequently required to work in a cleanroom environment and wear full cleanroom PPE, including gowns, hair and facialhair coverings, gloves, booties, and safety glasses.
  • Frequently work near moving mechanical equipment and is occasionally exposed to fumes, airborne particles, and heat.
  • Frequently required to stand, walk, and sit throughout the shift.
  • Frequently required to use hand and finger dexterity for handling small components, tools, and equipment.
  • Able to lift up to 75 pounds
  • 20/20 vision with or without corrective lenses
  • Normal level of hearing with or without the use of a corrective device

Spectrum Plastics Group is an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, religion, color, gender, gender identity, sexual orientation, age, national origin, disability, veteran status, genetic information, or any other status or condition protected by law. 

We are committed to providing access and equal opportunity for applicants. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact sandyhr@spectrumplastics.com  

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