Water/Wastewater Treatment Operator

Contribute to the City of Hamilton, one of Canada’s largest cities - home to a diverse and strong economy, an active and inclusive community, a robust cultural and dining scene, hundreds of kilometers of hiking trails and natural beauty just minutes from the downtown core, and so much more. Join our diverse team of talented and ambitious staff who embody our values of sensational service, courageous change, steadfast integrity, collective ownership and being engaged empowered employees. Help us achieve our vision of being the best place to raise a child and age successfully. #Water / Wastewater Treatment Operator (three (3) vacancies)

Interested applicants please submit your application online at by 4:00 p.m. on February 11, 2026.

This posting is for an existing vacancy

External applicants are considered only after the internal posting process has been completed. Under general supervision performs all operational duties for the water and wastewater treatment facilities and outstations. This will involve exposure to varying climatic conditions, potential exposure to treatment chemicals, sludge, water and wastewater, work at computer terminals, heights and confined spaces.

Accountable for the efficient operation, in compliance with applicable regulations, of all processes within an assigned work area in a Water and/or Wastewater Treatment system as well as for personal performance and promoting optimal team performance.

Operates and monitors the performance of plant process equipment and related appurtenances, including but not limited to valves, gates, pumps, compressors, engines, electric motors/generators, boilers, HVAC systems, chemical dosing equipment, etc.

Assists with the adjustment, inspection and evaluation of process performance and equipment to optimize efficiency and effectiveness of the treatment systems in accordance with established procedures and regulations.

Adjusts, inspects and evaluates processes and equipment that control the operation and effectiveness of a water and wastewater treatment facility to optimize performance, maintain regulatory compliance, and minimize local and/or plant wide adverse impacts while taking into consideration cost, equipment capabilities, environmental impacts and OH&S.

Makes process adjustments, operational decisions and addresses/responds to alarm conditions and emergency situations to ensure efficient, compliant and safe operation within established performance, regulatory and quality limits.

Utilizes various tools to perform operational duties including but not limited to SCADA systems, Laboratory Information Management System (LIMS), Infor EAM to maintain, manage and validate the operational data.

Provides work direction and training to other staff.

Maintains records and documentation of all process and/or work area activities using either manual or computerized systems including but not limited to plant logbooks, computerized databases, work order documentation, etc.

Collects daily, weekly and monthly water samples, as required by the SDWA and related regulations. Carries out various test procedures and processes calculations required to monitor process conditions, as appropriate.

Assists with the maintenance of logs and records pertaining to treatment system performance and outstation conditions in accordance with established procedures and regulations.

Ensures cleanliness and safety of facilities by maintaining the work area clean and organized.

Advise the need for water/waste water treatment chemicals and other supplies as needed. Receive and ensure safe unloading of bulk chemicals such as, Ferric Sulphate, Sodium Bisulphite, Sodium hypochlorite, Polyaluminum chloride, Aqua ammonia sodium etc.

Participates in the commissioning and optimization of water/waste water treatment plants and stations.

Undertakes all assigned duties in a safe and professional manner, complying with the City of Hamilton Safety Policies, and in accordance with the Occupational Health & Safety Act, WHIMS and all other applicable legislation. Performs preventative maintenance diagnostics, and routine preventative maintenance duties such as monitoring equipment for excessive vibration or high temperatures. Assists maintenance staff and facility personnel as required. Available to work on straight days and on a rotating shift schedule.

Must hold a current valid Operator-in-Training licence by examination in:

Wastewater Treatment System Operation

Wastewater Collection Operation

Water Treatment System Operation

Water Distribution Operation

A Level I or higher Wastewater Treatment Operation, Certificate of Competency

A Level I or higher Wastewater Collection Operation, Certificate of Competency

A Level I or higher Water Treatment Operation, Certificate of Competency

A Level I or higher Water Distribution Operation, Certificate of Competency

It would be expected the successful applicant would complete additional levels of training as prescribed by the Regulations leading to certification at the level of the facility.

Knowledge, understanding and experience with the application of related legislation and acts are preferred (Occupational Health and Safety Act, Ontario Water Regulation Act, Safe Drinking Water Act, Environmental Protection Act).

Previous experience in water and wastewater treatment preferred.

Must possess basic knowledge of mechanical and electrical maintenance.

Must be able to work without direct supervision.

Must be able to work shifts and report on-call outside normal work hours and to report to various worksites.

Must be able to interface with the public, equipment suppliers, contractors and others.

Must be able to prepare reports, maintain accurate records and communicate effectively verbally and in writing. Additionally, must be able to use computers and software packages.

Must posses computer skill literacy (Microsoft Word, Excel and Outlook).

Must comply with all aspects of the City’s Respiratory Program Policy. Respiratory Fit Test mandatory.

As a condition of employment, the successful applicant(s) will be required to obtain a satisfactory Criminal Record and Judicial Matters Check (CRJMC), at their own expense, prior to beginning work in this position.

Consistent with our Values and Corporate Culture Pillars, the City of Hamilton is committed to providing equitable treatment to all with respect to barrier-free employment and accommodation without discrimination. If you have an accommodation need, please contact Human Resources as soon as possible to make appropriate arrangements.