About the role#
As a Molding Maintenance Intern, you will work directly with Maintenance Mechanics and the Maintenance Manager to keep our production equipment running. You will assist with troubleshooting, repairs, and preventative maintenance on molding machines, thermoformers, and IML equipment. This role is based on-site in Etobicoke and provides hands-on experience in a manufacturing environment.
What you'll do#
- Troubleshoot and repair hydraulic and pneumatic systems, including pumps, valves, cylinders, and pistons.
- Respond to equipment breakdowns by identifying issues, cleaning the area, and resolving problems to support line performance.
- Perform preventative maintenance by taking machines apart to clean, inspect, and replace faulty parts.
- Assist production personnel with non-electrical equipment issues.
- Maintain a clean and orderly shop by organizing parts and keeping work areas tidy.
- Monitor and ensure compliance with Health and Safety, HACCP, SQF, and 5S standards.
- Identify hazards, suggest improvements, and participate in safety investigations.
- Follow food safety and cGMP processes.
- Support the maintenance team during peak workloads.
What you'll need#
- Currently working toward a college diploma in Mechanical or Industrial Engineering.
- Mechanical aptitude and strong troubleshooting skills.
- Fluency in English with clear verbal and written communication.
- Ability to work as a team player and adapt to different situations and groups.
- A reliable, trustworthy nature and a strong work ethic.
- Legal authorization to work in Canada.
- Working toward becoming a licensed Millwright is an asset.
Location & details#
- Location: Etobicoke, Ontario.
- Work Modality: On-site.
- Physical Requirements: This role requires working in a production environment with high noise levels. You must be able to perform heavy lifting, prolonged standing, walking, climbing, reaching, bending, kneeling, pushing, and pulling.
About Polytainers Inc.
Polytainers Inc. manufactures packaging and containers for the dairy industry and other sectors. Founded in 1968, the company maintains headquarters in Toronto and operates additional facilities in Markham and Lee's Summit. Its production capabilities include injection molding, thermoforming, and in-mold labeling. The organization employs approximately 386 people.
How to get in at Polytainers Inc.
Applying to Polytainers Inc. early gives you a distinct advantage before the candidate pool becomes crowded. Intern Insider sends an instant alert the moment a role matching your target is published anywhere, so you apply among the first and ensure your materials are seen before the pile grows. Reaching out to the right person often beats applying into a queue. Intern Insider surfaces the recruiters behind the company roles so you can reach out directly to ask about the position or a referral, which materially improves your response rates.


