At Mott MacDonald, we are driven by purpose and powered by brilliant people. As a trusted engineering, management, and development consultancy, we work with clients to solve complex challenges and deliver sustainable outcomes that make a meaningful difference for the communities we serve.

When you join us as an experienced professional, you will bring your expertise to work that matters while continuing to grow your career. You will collaborate with talented colleagues across disciplines and geographies, contribute your perspective, and help shape better outcomes through technical excellence, innovation, and integrity.

Build on your experience while helping shape what comes next. At Mott MacDonald, you'll work alongside talented people on complex and rewarding projects that make a real difference. We value fresh perspectives, encourage collaboration, and provide opportunities to expand your skills, take on recent challenges, and grow your career.

Whether you're deepening your technical expertise, broadening your leadership experience, or exploring new opportunities across our business, you'll be supported by a team that is committed to helping you succeed.

We are seeking a qualified and enthusiastic Mechanical Engineering Lead to join our successful Built Environment team in Toronto. The role provides the opportunity to work on an exciting range of projects in both private and public sector, including major framework & infrastructure developments. The role will be challenging, varied and offer opportunities for skills development and career development.

As a successful candidate, you will have a strong background and proficiency in Mechanical Engineering design and good all-around technical competencies. In addition to understanding building services and other core construction disciplines like civil, architectural and structural.

As a Principal Mechanical Engineer, you will typically be responsible for:

- Prepare and review project documentation, including basis of design, technical specifications, procurement specifications, assessment reports, and survey reports, each tailored to the appropriate project stage and covering all aspects of mechanical services.
- Conduct detailed surveys of mechanical systems and equipment to assess existing installations and gather data necessary for recommending new or upgraded design solutions.
- Produce and review mechanical design drawings and detailed calculations for systems such as HVAC, water supply, and drainage.
- Develop accurate fee estimates for project work elements.
- Provide expert advice on energy consumption and utilization, including recommendations to enhance energy efficiency and sustainability.
- Oversee design and project management of building services components,



ensuring delivery within agreed timelines and quality standards.
- Ensure adherence to Construction (Design and Management) Regulations, current legislation, and all applicable engineering standards throughout project execution.
- Develop resourcing plans for projects and manage team utilization effectively across the mechanical engineering group.
- Work closely with discipline leads and the Built Environment Lead to shape team strategy and contribute to organizational goals.
- Manage relationships with internal and external stakeholders, ensuring client satisfaction and identifying opportunities for business growth.
- Lead projects from feasibility through completion, providing guidance and technical leadership to support teams.
- Develop resilient infrastructure solutions that leverage digital technologies and tools for enhanced performance.
- Collaborate with other engineering disciplines to deliver integrated project solutions.
- Maximize project profitability by monitoring budgets, anticipating risks, and maintaining transparent communication aligned with client expectations.
- Lead multi-disciplinary proposals for transit and built environment projects, ensuring competitive and comprehensive submissions.

As you contribute to the collective growth of our team’s capability, we will offer you exceptional opportunities for technical and management skillset development and long-term career progression. To be considered for this role, you will possess the skills, experience and qualifications below:

- Minimum of 15 years managing diverse projects, including those within the built environment and transit sectors. Experience in aviation and nuclear projects is considered a significant asset.
- Bachelor’s degree in Building Services Engineering with a specialization in Mechanical Engineering.
- Must be a registered Professional Engineer (P.Eng) in the province of Ontario or eligible to obtain registration within 12 months of hire.
- Strong understanding of current building codes, regulations, legislation, and standards relevant to building and infrastructure design environments.
- Advanced knowledge and hands-on experience with industry-recognized software and mechanical design tools, such as NBS Chorus, IES, and HAP.
- Demonstrated experience and working knowledge of Building Information Modeling (BIM) processes and tools.




- Highly self-motivated with the ability to work independently, exercise sound judgment, and make confident decisions.
- Proven ability to work effectively in a team environment, fostering strong relationships with internal teams, external partners, and subcontractors.
- Excellent verbal communication skills combined with a positive, professional attitude.

Bring your expertise, curiosity, and drive to make a difference. If you are ready to join a collaborative consultancy where your perspective is valued, your growth is supported, and you are empowered to lead with integrity, we would love to hear from you. Benefits & Rewards The expected salary range for this position is from $152k - $185k. Multiple factors such as qualifications, overall experience, and position responsibilities will be used to determine the successful candidate's actual salary within the expected range.

In addition to base salary, Mott MacDonald offers performance-based bonuses and a comprehensive benefits package, giving employees a direct connection to our success.

The comprehensive benefits and rewards package is designed to support your health, wellbeing, and professional growth. Eligible employees have access to health and dental coverage, wellness resources, retirement savings, insurance and disability protection, paid time off, family leave support, and professional development opportunities. Benefits are subject to eligibility, plan terms, and change.

This posting is for an existing vacancy. Collaboration at Our Core At Mott MacDonald, we believe great ideas happen when we're together. Our hybrid approach centers on an in-office culture, with most of your time spent collaborating face-to-face and a minimum of three days per week in the office. We balance flexibility with connection, so you and your manager can choose how to meet clients, team, and personal commitments.

We seek to promote fair employment procedures and practices to ensure equal opportunities for all. We encourage individual expression in our workplace and are committed to creating an inclusive environment where everyone feels they have the opportunity to contribute.

We are an equal opportunity employer and are committed to providing employment accommodation in accordance with the Ontario Human Rights Code and the Accessibility for Ontarians with Disabilities Act, 2005 (AODA). Mott MacDonald Canada Limited will provide accommodations to job applicants with disabilities throughout the recruitment process. If you require accommodations, please notify us and we will work with you to meet your needs. Location(s):

Toronto, ON, CA

Contract Type: Permanent

Work Pattern: Full Time

Market: Buildings

Discipline: Mechanical

Job Ref: 15401

Recruiter Contact: Jen Porquez

📌 Principal Mechanical Engineer (Toronto)
🏢 Mott MacDonald
📍 Toronto