Treatment Operator Jobs in Ontario

• Waste Water Treatment Operator

  Clean Harbors

  • Guelph, ON

  • $25.00 per hour

  Clean Harbors in Guelph, ON is looking for a Wastewater Treatment Operator! The Wastewater Treatment Operator is working within a defined shift rotation, provides operations and ma…

• Waste Water Treatment Operator

  Clean Harbors

  • Guelph, ON

  • $25.00 per hour

  Job Category: Plant & Facilities Job Description: Clean Harbors in Guelph, ON is looking for a Wastewater Treatment Operator! The Wastewater Treatment Operator is working withi…

• Water Treatment/Wastewater Equipment Troubleshooting Specialist

  Veolia

  • Pickering, ON

  Job ID REF48640S-744000112796747 Date posted 04/16/2026 Location Canada Category Operations & Maintenance Water Treatment/Wastewater Equipment Troubleshooting Specialist Compan…

• Water Treatment Operator

  Adecco

  • Goderich, ON

  • $26.00-40.00 per hour

  Adecco is currently hiring Water & Wastewater Operators / Supervisors (Level 1+) for full-time opportunities based in Goderich, ON. This role is ideal for licensed and safety-focus…

• Water Treatment Operator

  Adecco

  • Ottawa, ON

  • $26.00-40.00 per hour

  Adecco is currently hiring Water & Wastewater Operators / Supervisors (Level 1+) for full-time opportunities based in Ottawa, ON. This role is ideal for licensed and safety-focused…

• Water Treatment Operator

  Adecco

  • Belleville, ON

  • $26.00-40.00 per hour

  Adecco is currently hiring Water & Wastewater Operators / Supervisors (Level 1+) for full-time opportunities based in Belleville, ON. This role is ideal for licensed and safety-foc…

• Water Treatment Operator

  Adecco

  • Haliburton, ON

  • $26.00-40.00 per hour

  Adecco is currently hiring Water & Wastewater Operators / Supervisors (Level 1+) for full-time opportunities based in Haliburton, ON. This role is ideal for licensed and safety-foc…

• Water Treatment Operator

  Adecco

  • Stoney Creek, ON

  • $26.00-40.00 per hour

  Adecco is currently hiring Water & Wastewater Operators / Supervisors (Level 1+) for full-time opportunities based in Owen Sound, ON. This role is ideal for licensed and safety-foc…

• Water Treatment Operator

  Adecco

  • Ontario

  • $26.00-40.00 per hour

  Adecco is currently hiring Water & Wastewater Operators / Supervisors (Level 1+) for full-time opportunities based in Muskoka, ON. This role is ideal for licensed and safety-focuse…

• Operator in Charge (OIC) - Water and Wastewater Treatment

  Veolia

  • Moosonee, ON

  Job ID REF55688M Date posted 02/26/2026 Location Canada Category Operations & Maintenance Operator in Charge (OIC) - Water and Wastewater Treatment Company Description A subs…

  View similar jobs:

  • Water Wastewater Treatment Operator Jobs in Moosonee, ON
  • Jobs in Moosonee, ON

• Refrigeration Operator- 3rd Class Engineer

  Fuze HR

  • Burlington, ON

  • $41.00 per hour

  🔧 Refrigeration Operator - 3rd Class | $41/hr 📍 Burlington, ON | Full-Time | 2/2/3 Rotating Shift Fuze HR is hiring a 3rd Class Refrigeration Operator for a large, stable foo…

• Operator, Floater (Fixed-Term)

  Cameco

  • Cobourg, ON

  • $83,775-105,510 per year

  Job Category: Manufacturing Location: Cobourg, ON Work Contract: Temp Full-Time H (K5) At Cameco we understand the value of a diverse workforce and we embrace, encourage and …

• Building Operator

  CBRE

  • Toronto, ON

  • $70,000 per year

  Global Workplace Solutions (GWS) Local is a hard services-led, tailored facility management solution. We self-perform hard services while partnering with best-in-class soft service…

• Building Operator

  CBRE

  • Toronto, ON

  • $65,000 per year

  Global Workplace Solutions (GWS) Local is a hard services-led, tailored facility management solution. We self-perform hard services while partnering with best-in-class soft service…

• Lead Operator

  Veolia

  • Toronto, ON

  • $33.00-40.35 per hour

  Job ID REF57138O Date posted 04/14/2026 Location Canada Category Operations & Maintenance Lead Operator Company Description A subsidiary of Veolia group, Veolia North America…

• Assistant Building Operator (Full-time) - Pickering

  Great Canadian Entertainment

  • Pickering, ON

  Job Category: Facilities & Maintenance Job Description: Pickering Casino Resort is seeking a Full-time Assistant Building Operator! Under the supervision of the Facilities Ma…

• Industrial Services Operator / Mechanic (HVAC / Boilers)

  Nestlé

  • Toronto, ON

  Nestlé is an equal opportunity employer committed to diversity and inclusion. Diversity and inclusion are incorporated in our everyday reality. We respect and encourage uniqueness …

• STP Operator (Unionized)

  AECON

  • Bowmanville, ON

  • $51.44 per hour

  Come Build Your Career at Aecon! As a Canadian leader in infrastructure development, Aecon is and building what matters for future generations to thrive! We lead some of the most…

• Building Operator

  Jones Lang LaSalle

  • Waterloo, ON

  JLL empowers you to shape a brighter way. Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology fo…

• Building Operator 3 Plant Operations

  Art Gallery of Ontario

  • Toronto, ON

  • $68,595 per year

  Description Requisition Id: 2025-188 Job Status: Regular Full-Time Hours & Days of Work: 35 hours per week Minimum Salary: $68,595.00 Maximum Salary: $85,685.00 Target Start D…

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