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Tetra Tech

Lead Mechanical Engineer

Calgary, AB, Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Nov 27, 2026
Experience: 10+ years of experience in Mechanical Engineering.
Posting language: English
Posted: Oct 28, 2026

Original job description

The Opportunity

Tetra Tech is adding a Lead Mechanical Engineer to our Mechanical Engineering team based in Calgary, AB .

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 500 million lives around the world.

Our office specializes in small to mid-sized projects for clients across Canada. The types of clients we work for include:

Heavy Industrial Facilities
Pipelines and Refineries
Mining and Mineral Processing
Municipal & Utilities
Water Treatment

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.

Your Role

Provide technical leadership and mentorship to team members, fostering growth, collaboration, and accountability.
Oversee project execution and resource coordination, ensuring alignment with strategic goals, timelines, and quality standards.
Act as a cross-functional liaison, driving effective communication between engineering, project management, and client stakeholders.
Interface with the project team and client as the Mechanical Lead to complete DBM, FEED and Detailed Engineering deliverables.
Prepare basic design and/or engineering reports.
Familiarity with applicable industry codes and standards such as CSA Z662, ASME B31.3, ASME VIII, API 650, API 610, etc.
Prepare and manage material take-offs and requisition packages, technical evaluations, and vendor document reviews and approvals.
Provide direction to piping designers for pipe specifications, pipe routing and equipment layouts.
Prepare manhour estimates for project scopes and change-orders for piping/mechanical disciplines.
Provide mechanical input to PIDs for valves, skids, vessels, rotating equipment, SP items, etc.
Prepare Construction / Engineering Work Packages (CWPs, EWPs) and associated evaluations.
Intermediate/Senior Engineers will prepare engineering calculations and reports for the following (based on experience or role):
- CSA and ASME Piping wall thickness calculations
- API 650 and API VIII calculations
- Hot tap calculations (piping, tank, pressure vessel)
- Material specifications
Conduct activities in line with internal procedures, legislation, and industry standards.
Pursue continuous professional development and maintain a high degree of discipline knowledge and awareness.
Work in a safe manner at all times and report all health and safety incidents and concerns.
Additional duties as required.

Qualifications

10+ years of experience in Mechanical Engineering.
Bachelor’s Degree in Mechanical Engineering.
Registered as a P.Eng with APEGA (other jurisdictions and asset).
Experience with pipeline facility projects, pump or compressor stations and tank farms.
Experience with Oil Sands Tailings an asset.
Experience with Rotating Equipment or HVAC is considered an asset.
Previous experience in oilsands MOC projects would be an asset.
Previous field experience in an operating facility or construction would be an asset.
Competency with Bluebeam and Microsoft Office Suite (Outlook, Excel, Word).
Autopipe, Ceasar II, NozzlePro, Abacus experience is an asset.
AFT Impulse, Bentley Hammer, SPS experience is an asset.
Strong analytical and problem-solving skills.
Strong interpersonal skills and ability to work with others and socialize with clients.

Life At Tetra Tech

The perks of working at Tetra Tech include:

Comprehensive and market-competitive benefits, available on day one of employment.
We have embraced a hybrid culture. Work remote and at our great office location, right in the heart of downtown Calgary.
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. Mentorship with world leading experts in your field.

About Tetra Tech

Tetra Tech combines the resources of a global, multibillion-dollar company with local, client-focused delivery in 550 locations around the world. Our reputation rests on the technical expertise and talent of more than 30,000 employees who are working together to provide smart, scalable solutions for challenging projects.

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: 719 ICE

Apply About employer

More about this job

Responsibilities

Lead mechanical engineering work for pipeline facility projects, including DBM, FEED, and detailed engineering deliverables, calculations, reports, material requisitions, and construction or engineering work packages. Provide technical leadership and mentorship, coordinate project resources, guide piping design, and liaise with project teams and clients to meet quality, schedule, and safety requirements.

Requirements

Requires at least 10 years of mechanical engineering experience, a bachelor's degree in Mechanical Engineering, and P.Eng registration with APEGA or another jurisdiction. Candidates should have experience with pipeline facilities, pump or compressor stations, and tank farms; knowledge of relevant engineering codes and standards is required, while oilsands, rotating equipment, HVAC, field experience, and listed engineering software are assets.

Skills

Mechanical Engineering
Technical Leadership
Project Execution
Resource Coordination
Client Communication
Piping Design
Mechanical Design
Engineering Calculations
Material Take-Offs
Vendor Document Review
Industry Codes And Standards
Rotating Equipment
Analytical And Problem-Solving Skills
Bluebeam
Microsoft Office
Autopipe

Benefits

Comprehensive Benefits
Work-Life Balance
Learning And Development Opportunities
Mentorship

Visa sponsorship

Not detected in the job text

Keywords

Mechanical Engineering
Pipeline Facilities
Pump Stations
Compressor Stations
Tank Farms
Oil Sands Tailings
P.Eng
APEGA
CSA Z662
ASME B31.3
ASME VIII
API 650
API 610
DBM
FEED
Detailed Engineering
Piping Design
Rotating Equipment
HVAC
Bluebeam
Microsoft Office
Autopipe
Caesar II
NozzlePro
Abacus
AFT Impulse
Bentley Hammer
SPS
Construction Work Packages
Engineering Work Packages

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