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General Lab Jobs in Toronto, ON (NOW HIRING)

Costco Wholesale

Maintenance Assistant

Markham, ON · On-site

CA$20/hr

Cleans and provides janitorial services and general upkeep for all areas of the Optical Lab to meet company standards and to protect employees and equipment. Cleans floors. Operates cardboard and ...

CSA Group

Laboratory Tech I

Toronto, ON

CA$2.8K/wk

Under guidance, direction and general supervision, sets-up, operates test equipment and conducts ... Senior Lab Tech. * Maintains good housekeeping of tools, equipment and work area following tests ...

Thermon

Test Technician, R&D

Oakville, ON · On-site

Assist with the upkeep, calibration, and general maintenance of lab equipment, ensuring tools and workspaces remain clean, safe, and functional.Review updated codes and standards and assess impact on ...

Thermon

Test Technician, R&D

Oakville, ON · On-site

... and general maintenance of lab equipment, ensuring tools and workspaces remain clean, safe, and functional. * Review updated codes and standards and assess impact on product design. * Provide ...

Essilor

LensCrafters - Team Lead

Toronto, ON

GENERAL FUNCTION The Team Lead creates exceptional value in the lives of customers & patients by ... Assists in the achievement of store success by managing key optical & lab processes (if applicable ...

Essilor

Licensed Optician Team Lead

Markham, ON · On-site

GENERAL FUNCTION The Licensed Team Lead creates exceptional value in the lives of customers ... Assists in the achievement of store success by managing key optical & lab processes (if applicable ...

EssilorLuxottica Group

Maintenance Tech 3

Toronto, ON · On-site

CA$30.34 - CA$36.40/hr

GENERAL FUNCTION Duties in this position are occasionally repetitive, requiring analysis and use of ... Provide support to lab personnel by completing complex machine repair requests, chemical tests ...

Essilor

Maintenance Tech 3

Toronto, ON

CA$30.34 - CA$36.40/hr

GENERAL FUNCTION Duties in this position are occasionally repetitive, requiring analysis and use of ... Provide support to lab personnel by completing complex machine repair requests, chemical tests ...

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All JobsGeneral Lab JobsGeneral Lab Jobs in Toronto, ON

General Lab information

What kinds of general lab jobs are there?

General lab jobs include roles such as laboratory technician, research assistant, lab assistant, and quality control analyst. These positions typically involve tasks like sample preparation, data recording, equipment maintenance, and may require knowledge of lab safety protocols and basic scientific techniques.

What jobs can I do in a general lab?

In a general lab, common jobs include laboratory technician, research assistant, and lab assistant. These roles typically involve preparing samples, conducting experiments, recording data, and maintaining lab equipment, often requiring knowledge of safety protocols and basic scientific techniques.
What cities near Toronto, ON are hiring for General Lab jobs? Cities near Toronto, ON with the most General Lab job openings:
General Lab jobs near you
Infographic showing various General Lab job openings in Toronto, ON as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, 1% Temporary, and 2% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution.

Maintenance Assistant

Costco Wholesale

Markham, ON • On-site

CA$20/hr

Full-time

Re-posted 4 days ago

Costco rating

8.1

Company rating: 8.1 out of 10

Based on 1,917 frontline employees who took The Breakroom Quiz

2nd of 39 rated national retailers

Job description

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Job Description 

Description of position:
Cleans and provides janitorial services and general upkeep for all areas of the Optical Lab to meet company standards and to protect employees and equipment. Cleans floors. Operates cardboard and trash compactors. Follows safety and security procedures. Assists in grounds maintenance. Restocks cleaning supplies as needed.
Daily tasks and responsibilities:

  • Checks daily schedule for routine tasks.
  • Cleans floors in offices, break room, restrooms, production floor, and other areas of the facility. Changes scrubber water frequently to keep dust at minimum.
  • Empties trash from designated areas throughout the Lab. Operates trash and cardboard compactors.
  • Follows location procedures and standards for the performance of duties. Follows safety and security procedures.
  • Responds quickly to clean up spills.
  • Cleans facility light fixtures regularly; changes light bulbs. Washes windows, upper walls, and ceilings. Vacuums rafters periodically.
  • Assists in grounds maintenance, such as blowing leaves, picking up litter, and conducting roof checks. Participates in snow and ice removal. Assists with painting. Performs concrete floor repairs throughout lab.
  • Monitors cleaning supplies and restock as necessary. Received and place merchandise in the appropriate department.
  • Follows proper Optical Lab and general safety and security procedures and standards.
  • Provides prompt and courteous customer service to members, employees, and suppliers. Give submission for pieces or other.
  • Understand and operate de maintenance system Interal.
  • Do the store inventory
  • Perform the internal and external purchases.


Non-Essential Functions and Tasks:

  • Assists in other areas of the Lab as necessary.


Qualifications (Costco-specific or industry-specific skills that candidates must possess):

  • Education/Training:    High School Diploma or GED preferred
  • Licenses/Certifications:    Driver's license is required
  • Experience:        Janitorial experience preferred
  • Knowledge/Skills:    Mechanical aptiture required. Manual dexterity required.
  • Other:         


Knowledge and talents recommended for job success:
NOTE: For postings in Quebec locations, candidates must be able to communicate in French (oral and written).

Pay Details 
$20.00 - 20.00
Pay Rate Type 
Hourly
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About Costco

Sourced by ZipRecruiter

Costco is a membership warehouse club, dedicated to bringing our members the best possible prices on quality brand-name merchandise. With more than 800 locations worldwide, Costco provides a wide selection of merchandise, plus the convenience of specialty departments and exclusive member services, all designed to make your shopping experience a pleasurable one. Today, as the company evolves, it stays true to the qualities that helped attract and retain millions of loyal members around the globe: Commitment to quality. Costco warehouses carry about 4,000 SKUs (stock keeping units) compared to the 30,000 found at most supermarkets. By carefully choosing products based on quality, price, brand, and features, the company can offer the best value to members.

Industry

Retail

Company size

10,000+ Employees

Headquarters location

Issaquah, WA, US

Year founded

1983

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