Newmarket, On Junior mechanical designer Jobs – 7 Openings This Week

Senior Mechanical Engineer, Buildings
WSP —Thornhill, ON
- $94,100–$138,000 a year
- Engineering
- Laboratory experience
- Business development
Mechanical Design Engineer - Power Transformers
Northern Transformer —Maple, ON
- Full-time
- CAD
- Engineering
- English
Quick apply
Fire Protection Specialist
exp —Markham, ON
- $90,000–$100,000 a year
- Full-time
- Hybrid work
- AutoCAD
- Engineering
- Microsoft Office
Team Leader, Building Mechanical
WSP —Thornhill, ON
- $112,100–$162,800 a year
- Engineering
- Project management
- Bachelor's
2h
Senior Fire Protection Engineer
Stantec —Markham, ON
- $114,600–$164,600 a year
- Temporary
- Hybrid work
- AutoCAD
- Engineering
- Microsoft Office
- Wellness program
- Employee stock purchase plan
Senior Electrical Engineer
WSP —Thornhill, ON
- $104,500–$151,800 a year
- Engineering
- Business development
- Bachelor's

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Senior Mechanical Engineer, Buildings

WSP -
Thornhill, ON

Apply Now

Job details

$94,100–$138,000 a year

Qualifications

Mechanical engineering
Data center experience
Engineering
Mechanical Engineering
Laboratory experience
Revit
Business development
Bachelor's
Plumbing
HVAC
LEED Certification
Communication skills

Full job description

What if you could redefine what’s possible? With us, you can.

With us, you can. You want Purpose. Growth. Opportunity. People who get it.
We are the home of ambitious, passionate, and innovative world shapers.
With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions.
We are pathfinders and impact makers.
We are Visioneers.
We are WSP.

The Opportunity

Build the Future with Us

Play a key role in shaping high‑performance, sustainable buildings across the GTA. As a Senior Mechanical Engineer within our Property & Buildings M&E team , you will lead complex HVAC and plumbing designs, influence multidisciplinary project outcomes, and mentor the next generation of engineers—while working on some of the most technically advanced facilities in Canada.

This role is based in Thornhill or Downtown Toronto .

Your Impact

Lead the mechanical design of HVAC, heating/cooling plants, plumbing, and fire protection systems for new and retrofit projects.
Deliver high‑quality technical reports, drawings, and specifications aligned with codes and client standards.
Manage project scope, schedules, budgets, and deliverables to ensure successful outcomes.
Provide technical leadership and mentorship to junior engineers and designers.
Coordinate seamlessly with structural, electrical, architectural, and offshore design teams.
Review and approve mechanical designs to ensure quality, constructability, and performance.
Build trusted client relationships and contribute to business development initiatives.

The Skills That Set You Apart

Bachelor’s degree in Mechanical Engineering with 10+ years of consulting experience in building systems design.
Licensed Professional Engineer (PEO) in Ontario.
Advanced expertise in HVAC, plumbing, and fire protection systems for complex facilities.
Minimum 5 years’ experience delivering Data Centre or Science / Laboratory / Pharmaceutical projects in Canada.
Proven ability to lead multidisciplinary mechanical design teams.
Strong proficiency in Revit, IES, and HAP or equivalent mechanical design tools.
Solid understanding of applicable codes, standards, and sustainable design principles (LEED an asset).
Excellent communication skills and comfort collaborating with both local and offshore teams.

Why Choose WSP?

Why Choose WSP? We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home.

Proudly Canadian – we are a Top 100 Employer in Canada for 2026.
A global community of brilliant minds – your next idea, mentor, or opportunity is always within reach.
Limitless opportunities start here. Whether it’s across the country or around the globe, we help you tailor your role to match your ambition — because your growth drives ours.
Flexible work, real balance – we recognize the importance of balance in our lives and encourage you to prioritize the balance in yours.

#WeAreWSP

Compensation

AB, BC, NT, NU, SK & YT: $104,100 – $138,000
MB & ON: $95,000 – $130,800
NB, NL, NS, PE & QC: $94,100 – $124,900

Disclosure:
The final salary awarded for this role may vary from the above range based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. The wage range provided in this job posting may be subject to change for business purposes.

Ready to Shape the Future?

Join a team where your expertise helps create smarter, more resilient places for communities to thrive. Apply today and discover what’s possible—with WSP.

At WSP , we exist to shape communities to advance humanity.

It’s why we bring people together who are wired to solve complex challenges - engineers, scientists, advisors, and technical experts who are driven by a common passion - to redefine what’s possible and shape what comes next. We are Visioneers.

As one of the world’s leading professional services firms, we partner with clients across transportation, infrastructure, environment, buildings, energy, water, mining and metals. We pair deep local knowledge with global insights to pioneer solutions designed to leave a lasting, positive impact.

At WSP , you’ll join a community of brilliant minds that push boundaries every day - applying deep expertise and fuelling innovation to help create a more connected and resilient future. Here, your ideas are valued, your growth is supported, and you are encouraged to bring your authentic self to work. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose.

Join us.

Please Note:

Health and Safety is a core paramount value of WSP. Given the importance of keeping one another safe it is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations. Full details here .

Some safety-sensitive positions involve fieldwork and may include work in a variety of environmental conditions, such as remote or isolated areas, working alone, and in inclement weather (within safe and reasonable limits).

WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

WSP is committed to the principles of employment equity. Only the candidates selected will be contacted.

WSP does not accept unsolicited resumes from agencies. Full details here .

Apply Now

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junior mechanical designer jobs in newmarket, on

Senior Mechanical Engineer, Buildings

Mechanical Design Engineer - Power Transformers

Fire Protection Specialist

Team Leader, Building Mechanical

Senior Fire Protection Engineer

Senior Electrical Engineer