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Tetra Tech

Intermediate Mechanical Engineer - Hydro

Mississauga, ON, Canada

Pay: The salary range for this position is $95,000 to $145,000.
Job type: Full-time
Apply by: Oct 31, 2026
Experience: Approximately 6–10 years of progressive mechanical engineering and project engineering experience.
Posting language: English
Posted: Oct 1, 2026

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Original job description

The Opportunity

Tetra Tech is adding an Intermediate Mechanical Engineer to our Hydropower and Water Resources team based in Canada.

Why Tetra Tech

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world.

Your Impact

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

Position Summary

We are currently seeking an Intermediate Mechanical Engineer for our Hydropower and Water Resources team . This is a new vacant position for which we are actively recruiting. The successful candidate will support multidisciplinary hydropower, dam, and water infrastructure projects across Canada, with a focus on the design, specification, procurement, construction support, and commissioning of hydro-mechanical systems.

Working under the technical direction of senior engineers, the Intermediate Mechanical Engineer will contribute to projects from feasibility and conceptual design through detailed design, tendering, construction, commissioning, and operation. This role is well suited to a mechanical engineer with direct experience in hydropower, dams, water conveyance, or hydro-mechanical infrastructure.

Essential Job Functions

Perform mechanical engineering design and analysis for hydropower, dam, and water infrastructure projects.
Develop mechanical layouts and design solutions for powerhouse equipment, penstocks, piping systems, hydraulic steel structures, gates, hoists, auxiliary systems, and balance-of-plant equipment.
Design and assess penstocks, including routing, supports, expansion provisions, hydraulic considerations, and coordination with civil and structural components.
Support the selection, specification, and procurement of hydro-mechanical equipment, including turbines, generators, governors, intake gates, spillway gates, stoplogs, bulkheads, gate hoists, embedded parts, and related systems.
Prepare engineering calculations, design memoranda, technical specifications, procurement packages, tender documents, contract documentation, feasibility studies, and condition assessment reports.
Review vendor proposals, technical submissions, supplier drawings, shop drawings, and equipment documentation.
Coordinate mechanical design activities with civil, structural, electrical, geotechnical, environmental, and construction teams.
Participate in engineering risk assessments and apply risk-based design principles to identify, evaluate, and mitigate technical and project risks.
Provide engineering support during construction and commissioning, including RFIs, contractor submittal reviews, field inspections, issue resolution, commissioning plans, and on-site support.
Support proposal preparation, project planning, scheduling, and client presentations.
Mentor junior engineers and designers while contributing to technical quality, lessons learned, and continuous improvement initiatives.
Work safely and report all health and safety concerns.
Perform additional duties as required.

Required Qualifications

Bachelor's degree in Mechanical Engineering from an accredited university.
Registered Professional Engineer (P.Eng.) in Canada.
Approximately 6–10 years of progressive mechanical engineering and project engineering experience.
Demonstrated experience playing an active role in delivering hydropower and water resources projects.
Experience with hydro-mechanical systems such as turbines, generators, penstocks, gates, hoists, hydraulic steel structures, auxiliary systems, hydraulic power systems, or balance-of-plant equipment.
Strong knowledge of Canadian engineering codes, ASME, CSA, hydraulic steel structures, pressure piping, and hydro-mechanical equipment.
Experience preparing engineering calculations, reports, design documentation, technical specifications, procurement packages, and tender documents.
Experience providing engineering support during construction and commissioning, including contractor submittal reviews, RFIs, field inspections, and commissioning support.
Familiarity with power and energy modelling, hydropower economics, power generation protection, controls, and communications is considered an asset.
Excellent technical writing, verbal communication, problem-solving, and client relationship skills.
Ability to work independently while collaborating effectively within multidisciplinary project teams.
Willingness and ability to travel periodically to project sites across Canada.

Physical Requirements

Ability to sit or stand as required and remain in a stationary position for at least 50% of the workday.
Frequent use of hands and fingers to handle, manipulate, or feel objects, including continuous operation of a computer and other standard office equipment such as calculators, copiers, and printers.

Work Environment / Environmental Factors

The majority of work is performed in a professional office setting.
Periodic travel may be required and could involve limited exposure to extreme temperatures. Travel may include air travel, during which the employee may be required to remain seated for extended periods.

Additional Information

Tetra Tech offers comprehensive benefit options that allow employees to design a plan based on individual needs and assists in planning for long-term financial security. Available benefits include medical, dental and vision insurance, term life, disability, accidental death & dismemberment coverage, time off with pay, retirement plan, and an Employee Stock Purchase Plan.

The salary range for this position is $95,000 to $145,000. Please note that Tetra Tech considers various factors in determining pay, including but not limited to: education, relevant and demonstrated work experience in the role, skills, geographic location, qualifications, certifications, and other competencies relevant to the needs of the business.

Life At Tetra Tech

The perks of working at Tetra Tech include:

Comprehensive and market-competitive benefits.
Merit-based financial rewards.
Flexibility and company-wide commitment to work/life balance.
Collaborative team atmosphere that values the contributions of all employees.
Learning and development opportunities for ongoing professional growth.

About Tetra Tech

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science ® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law.

Tetra Tech may use AI-enabled tools to screen, assess, and assist in selecting applicants for this position based on job-related criteria. However, a human decision-maker will decide who moves forward throughout every stage of the hiring process.

We invite applications from all interested parties.

Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

Additional Information

Organization: 705 PWR

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More about this job

Responsibilities

Design and analyze mechanical systems for hydropower, dam, and water infrastructure projects, including penstocks, powerhouse equipment, gates, hoists, and auxiliary systems. Prepare design and procurement documentation, coordinate with multidisciplinary teams, and support projects through construction, commissioning, and operation.

Requirements

Requires a bachelor's degree in Mechanical Engineering, Canadian P.Eng. registration, and approximately 6–10 years of relevant engineering experience, including active involvement in hydropower or water resources projects. Candidates should have hydro-mechanical systems expertise, knowledge of applicable Canadian and industry codes, strong technical communication skills, and willingness to travel to project sites.

Skills

Mechanical Engineering Design
Hydropower Engineering
Hydro-Mechanical Systems
Penstock Design
Hydraulic Steel Structures
Turbines and Generators
Gates and Hoists
Engineering Calculations
Technical Specifications
Procurement and Tendering
Vendor Proposal Review
Construction Support
Commissioning
Risk Assessment
Multidisciplinary Coordination
Technical Writing

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
Term Life Insurance
Disability Coverage
Accidental Death and Dismemberment Coverage
Paid Time Off
Retirement Plan
Employee Stock Purchase Plan
Flexible Work Arrangements
Merit-Based Financial Rewards
Learning and Development Opportunities

Visa sponsorship

Not detected in the job text

Keywords

Hydropower
Water Resources
Mechanical Engineering
Hydro-Mechanical Systems
Dams
Water Infrastructure
Penstocks
Turbines
Generators
Governors
Hydraulic Steel Structures
Intake Gates
Spillway Gates
Stoplogs
Bulkheads
Gate Hoists
Pressure Piping
ASME
CSA
Canadian Engineering Codes
Feasibility Studies
Condition Assessments
Procurement Packages
Tender Documents
Construction Support
Commissioning
Risk-Based Design
Power and Energy Modelling
Power Generation Protection
Controls and Communications

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