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Wastewater Process Engineer Jobs in Ontario (NOW HIRING)

We are seeking a Process Engineer - Water/Wastewater, to join TYLin's Water Sector. In this role, you'll design a variety of municipal servicing projects, both public and private, while growing your ...

Support development of water and wastewater treatment process models * Assist with calibration and validation of treatment plant models * Perform engineering calculations and technical analyses for ...

Support development of water and wastewater treatment process models * Assist with calibration and validation of treatment plant models * Perform engineering calculations and technical analyses for ...

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Wastewater Process Engineer information

What does a wastewater process engineer do?

A Wastewater Process Engineer is responsible for designing, optimizing, and overseeing the systems and processes used to treat and manage wastewater. They ensure that wastewater treatment plants operate efficiently and comply with environmental regulations. Their work involves analyzing water samples, selecting treatment technologies, and troubleshooting issues in existing systems. Wastewater Process Engineers play a critical role in protecting public health and the environment by ensuring that water released from treatment plants is safe.

What are the key skills and qualifications needed to thrive as a wastewater process engineer, and why are they important?

To thrive as a Wastewater Process Engineer, you need a solid background in chemical, civil, or environmental engineering, typically supported by a relevant engineering degree and sometimes a Professional Engineer (PE) license. Familiarity with process simulation software (such as AutoCAD or HAZOP), SCADA systems, and regulatory compliance tools is essential. Strong problem-solving, teamwork, and communication skills help you collaborate across disciplines and address complex treatment challenges. These skills ensure efficient plant operations, regulatory compliance, and the protection of public health and the environment.

What are some common challenges wastewater process engineers face when optimizing treatment processes?

Wastewater Process Engineers often encounter challenges such as adapting to fluctuations in influent quality, keeping up with evolving regulatory standards, and integrating new treatment technologies into existing systems. They must frequently balance treatment efficiency with operational costs, all while ensuring environmental compliance. Collaboration with operations staff, maintenance teams, and regulatory agencies is essential to troubleshoot issues and implement process improvements effectively.

What is the difference between Wastewater Process Engineer vs Environmental Engineer?

AspectWastewater Process EngineerEnvironmental Engineer
CredentialsBachelor's in Environmental, Chemical, or Civil Engineering; often requires PE licenseBachelor's in Environmental, Civil, or Chemical Engineering; often requires PE license
Work EnvironmentWastewater treatment plants, industrial facilities, consulting firmsEnvironmental consulting, government agencies, industrial sites
Industry UsagePrimarily in water treatment and municipal wastewater facilitiesBroader environmental sectors including air quality, waste management, and remediation

While both roles require similar engineering credentials and often work in related environments, Wastewater Process Engineers focus specifically on designing, operating, and optimizing wastewater treatment systems. Environmental Engineers have a broader scope, addressing various environmental issues beyond wastewater, such as air pollution and site remediation.

What are popular job titles related to Wastewater Process Engineer jobs in Ontario?

For Wastewater Process Engineer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Wastewater Process Engineer jobs in Ontario look for?

The top searched job categories for Wastewater Process Engineer jobs in Ontario are:

Infographic showing various Wastewater Process Engineer job openings in Ontario as of August 2026, with employment types broken down into 1% As Needed, 73% Full Time, 22% Part Time, 3% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Water and Wastewater Process Mechanical Engineer

Arcadis

Toronto, ON • Hybrid

CA$89K - CA$134K/yr

Full-time

Re-posted yesterday


Arcadis rating

8.7

Company rating: 8.7 out of 10

Based on 22 frontline employees who took The Breakroom Quiz

80th of 451 rated engineering


Job description

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life. Everyone has an important role to play.

With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together. Role description: We are seeking a Water and Wastewater Process Mechanical Engineer with 5 to 10 years of progressive experience in the assessment and design of water and wastewater utilities projects including pumping/lift stations, reservoirs and treatment facilities. As part of our growing Canadian Water business, you will work closely with other discipline lead engineers to advance and complete projects.

You will bring your expertise to a variety of project types ranging from large municipal and industrial facility feasibility studies to the design of new communal systems projects. You will play an important role in managing design teams, project management and business development. The successful candidate will play a key role in leading and overseeing complex projects ensuring compliance with all relevant codes, standards and design guidelines.

Working with our Water Team, you'll work on the design of new facilities, upgrades to existing facilities, environmental assessment and feasibility studies, condition assessments and provide engineering services during construction. Role accountabilities: Lead process mechanical design for the upgrade of existing municipal water and wastewater treatment and storage facilities and pumping/ lift stations Lead process mechanical design for new communal water and wastewater systems Provide process mechanical engineering services during construction including responding to RFIs, review shop drawings, conduct site inspections and participate in system testing and commissioning. Develop construction documents and specifications, the basis of design including completion of detailed calculations Complete assessments, develop and cost design options and prepare technical memoranda to document rationale and recommendations Lead design coordination between engineering disciplines Develop process flow narratives and complete hydraulic analyses Assist in project management activities including budget and schedule tracking.

Participate in the preparation of proposals and business development Qualifications & Experience: 5-10 years of experience in process mechanical engineering for water and wastewater facilities Bachelor degree in civil or chemical engineering or recognized equivalent. Masters degree would be an asset. Successful candidate must have P.

Eng. designation, in good standing The successful candidate should have a strong working knowledge of CAD systems including AutoCAD and MicroStation and the REVIT modelling system, strong working knowledge of design standards, guidelines and codes are required along with strong written and verbal communication skills, strong work ethic and ability to multi-task and prioritize activities. Why Arcadis.

We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It's why we are pioneering a skills-based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together.

You'll do meaningful work, and no matter what role, you'll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark, on your career, your colleagues, your clients, your life and the world around you. Together, we can create a lasting legacy.

Join Arcadis. Create a Legacy. Our Commitment to Equality, Diversity, Inclusion & Belonging We want you to be able to bring your best self to work every day which is why we take equality and inclusion seriously and hold ourselves to account for our actions.

Our ambition is to be an employer of choice and provide a great place to work for all our people. We are an equal opportunity and affirmative action employer. Women, minorities, people with disabilities and veterans are strongly encouraged to apply.

We are dedicated to a policy of non-discrimination in employment on any basis including race, creed, color, religion, national origin, sex, age, disability, marital status, sexual orientation, gender identity, citizenship status, disability, veteran status, or any other basis prohibited by law. The salary range for this position is $89,600-134,400. The base salary represents Arcadis' hiring range for this position.

Actual salaries will vary and will be based on various factors, such as location, skills, experience, and qualification for the role. #LI-TM1 #Resilience-NA #Environment-NA #LI-Hybrid


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About Arcadis

Sourced by ZipRecruiter

Our work with clients has a direct impact on people's lives and on the planet. We make moving, living and belonging in cities safer, more resilient and more sustainable. By partnering with our clients as responsible custodians of our earth's resources, we can create a sustainable planet. We continue to think of new ways to make positive impacts and create better experiences for people; data driven and digital solutions have become part of the Arcadis DNA. Working together with clients and using techniques like design thinking, we can get to the heart of our clients' most pressing challenges and work together to solve them.

Industry

Engineering professional services

Company size

10,000+ Employees

Headquarters location

Highlands Ranch, CO, US