Maintenance Assistant – Costco – St. John’s, NL

Based out of 75 Danny Drive in St. John’s, Newfoundland, this Maintenance Assistant position with Costco is a hands-on role focused on keeping the Optical Lab clean, safe, and well-maintained. If you take pride in a tidy workspace and don’t mind rolling up your sleeves, this could be a solid fit.

Day to day, you’ll be responsible for janitorial and facility upkeep across all areas of the lab — from floors and fixtures to outdoor grounds maintenance. The role also involves operating equipment like trash and cardboard compactors, managing cleaning supply inventory, and supporting the broader team wherever needed.

About the Role: Maintenance Assistant

As a Maintenance Assistant at Costco’s Optical Lab, your primary focus is maintaining a clean, safe environment that meets company standards and protects both employees and equipment. You’ll tackle everything from scrubbing floors and cleaning light fixtures to handling roof checks and participating in snow and ice removal. The scope of the role extends beyond basic cleaning — you’ll also assist with painting, perform concrete floor repairs, manage inventory, and handle internal and external purchases using the facility’s maintenance system.

Following safety and security procedures is a core part of this position. You’ll be expected to respond quickly to spills, adhere to all Optical Lab safety standards, and provide courteous service to members, employees, and suppliers. Working as part of a team and jumping in to assist other areas of the lab when needed is equally important.

Benefits and Salary

Costco is widely known for offering competitive compensation and a comprehensive benefits package to its employees. While specific salary details are not listed in this posting, Costco’s reputation for employee-friendly benefits — including health coverage, retirement savings plans, and an inclusive workplace culture — makes it a sought-after employer across Canada.

Responsibilities

This role covers a broad range of facility maintenance and janitorial duties within Costco’s Optical Lab. Keeping operations running smoothly depends on the Maintenance Assistant staying on top of routine tasks while responding quickly to unexpected situations. Here’s what a typical day might look like:

• Clean floors throughout offices, break rooms, restrooms, and the production floor using a scrubber, changing water frequently to minimize dust
• Empty trash from designated areas and operate trash and cardboard compactors
• Respond promptly to spills and other immediate cleaning needs throughout the facility
• Maintain fixtures by cleaning light fixtures, changing light bulbs, washing windows, upper walls, and ceilings, and vacuuming rafters periodically
• Assist with grounds maintenance including blowing leaves, picking up litter, roof checks, snow and ice removal, painting, and concrete floor repairs
• Monitor and restock cleaning supplies as needed and receive merchandise into the appropriate department
• Manage inventory and perform both internal and external purchases for the facility
• Operate the maintenance system (Interal) and follow all Optical Lab safety and security procedures
• Provide courteous service to members, employees, and suppliers, and assist in other areas of the lab as required

Requirements / Skills

Costco is looking for a reliable candidate with some janitorial or maintenance experience and the mechanical know-how to handle a range of facility tasks. Manual dexterity and the ability to work independently while following set procedures are key to succeeding in this role.

• High School Diploma or GED preferred
• Valid driver’s licence is required
• Janitorial experience is preferred
• Mechanical aptitude required for operating equipment and performing repairs
• Manual dexterity required for hands-on maintenance tasks
• Ability to follow safety and security procedures consistently

How to Apply

To apply, use the official link below to submit your application through Costco’s hiring portal. Make sure your resume is up to date and reflects any relevant janitorial or maintenance experience before submitting.

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