Posted 19 days ago
Senior Mechanical Engineer
@ Callidus Engineering
Ontario
Overview
Callidus Engineering is hiring a Senior Mechanical Engineer in London, Kingston or Kitchener, Ontario, to review and stamp mechanical projects, direct design strategy on complex work, lead audits and investigations, conduct site visits, and mentor junior engineers. The role is full-time and includes competitive wages, a benefits package and incentive compensation tied to company performance. Candidates need an Ontario engineering licence and 10+ years of building services design experience.
Responsibilities:
- Review and stamp mechanical projects of all sizes
- Direct design strategies on complex projects
- Lead audits, feasibility assessments and investigations
- Conduct site visits and troubleshoot construction issues
- Mentor intermediate and junior engineers and designers
Requirements summary:
- Ontario engineering licence
- 10+ years of building construction design experience
- Central plant and DDC control systems experience
- Extensive knowledge of OBC, ASHRAE, CSA and ASPE
- Excellent communication and deadline management
- Legally entitled to work in Canada
Tools & skills
Source and dates
Employer career site / ATS feed · bamboohr
- Employer posting date
- 2026-10-18
- First seen by our source
- 2026-10-21
- Source record updated
- 2026-10-21
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Engineering |
| Experience | 10+ years |
| Hours per week | 40 (estimated) |
| Travel | ground: minimal |
| Work setting | Office, Construction site, Client sites |
| Position | Sitting and standing |
| Physical demands | physical low · computer high |
| Languages | English |
| Perks mentioned | Performance bonus |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Callidus Engineering
| Field | Value |
|---|---|
| Open jobs on Jobsy | 4 |
We are the Callidus Engineering team. We make buildings work!
You’ve built your career solving complex mechanical challenges, delivering high-quality designs, and ensuring projects meet the highest standards. You deserve a role where your expertise is valued, your work has impact, and you have the flexibility to focus on what you do best.
At Callidus Engineering, you’ll work on diverse projects, collaborate with a skilled team, and have the autonomy to make decisions that matter. If you have 10+ years of experience in Building Services, this is your opportunity to take the next step in your career at our London, Kingston, or Kitchener locations.
At Callidus Engineering, your contributions matter. Your ideas drive projects forward, and your expertise shapes the Canada’s building landscape. You’ll be part of a team that values community, ambition, and integrity, where professional growth is supported, and technical excellence is the standard.
What You Can Expect
- Competitive wages that recognize your expertise
- A strong benefits package to support you and your family
- Incentive compensation tied to company performance
Learn more about what it’s like to work with us: https://callidus.ca/work-at-callidus/
Your Role Includes
- Reviewing and stamping mechanical projects of all complexities and sizes
- Directing design strategies and concepts on complex projects
- Leading audits, feasibility assessments, and investigations, and writing corresponding reports
- Conducting site visits and troubleshooting construction issues; collaborating on solutions
- Mentoring intermediate and junior-level engineers and designers
- Supporting the continuous development of mechanical design standards and practices
What You will Bring to the Team
- Design experience with central plant systems, including hot water, steam, and chilled water systems
- Significant exposure to DDC control systems, including writing sequences of operations, specifications, and troubleshooting on-site control issues
- Extensive knowledge of codes and standards, including OBC, ASHRAE, CSA, and ASPE standards
- Design experience across multiple industries, including commercial, industrial, educational, multi-unit residential, healthcare, and government
- Excellent communication skills and the ability to organize, multitask, and work well under deadlines
- A collaborative mindset and a willingness to share ideas with a track record of sound judgment and decision-making
- Engineering license in Ontario with 10+ years of relevant design experience in the building construction industry
- Legally entitled to work in Canada
Position Availability: This posting is for an existing vacancy.
Use of Artificial Intelligence: Callidus Engineering does not use artificial intelligence to screen, assess or select applicants for this position. A member of our team reads your resume and meets with you.
Journal
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