Senior Mechanical Engineer

7 days ago


Kitchener Ontario NA Canada Callidus Engineering Full time $90,000 - $105,000 per year

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:

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
  • Professional engineering license in Ontario with at least 5 years of Canadian experience.


  • Kitchener, Canada MT Talent Full time

    Senior Mechanical Engineer (P. Eng) Who Are We? We are a strategic recruitment agency specializing in connecting skilled professionals with top employers across Canada and the United States. Our holistic approach ensures that both technical and cultural alignment leads to long-term success for all parties involved. Why Are We Looking for You? We are proud to...


  • Kitchener, Canada MT Talent Full time

    Senior Mechanical Engineer (P. Eng) Who Are We? We are a strategic recruitment agency specializing in connecting skilled professionals with top employers across Canada and the United States. Our holistic approach ensures that both technical and cultural alignment leads to long-term success for all parties involved. Why Are We Looking for You? We are proud to...


  • Kitchener, Canada MT Talent Full time

    Senior Mechanical Engineer (P. Eng) Who Are We? We are a strategic recruitment agency specializing in connecting skilled professionals with top employers across Canada and the United States. Our holistic approach ensures that both technical and cultural alignment leads to long-term success for all parties involved. Why Are We Looking for You? We are proud to...


  • Kitchener, Canada Qidni Labs Full time

    OverviewQidni Labs Inc. is a clinical-stage medical device company focused on kidney failure. We are developing advanced dialysis technologies aiming to make dialysis treatment significantly more accessible to patients worldwide.Role DescriptionThis is a full-time, on-site role for a Senior Mechanical Design Engineer located in Kitchener, Ontario. The Senior...


  • Kitchener, Canada TalentSphere Staffing Solutions Full time

    Overview Senior Mechanical Designer/Engineer role at TalentSphere Staffing Solutions in Waterloo, Ontario. Mechanical Engineer – Building Consulting (Waterloo, ON) | Location: Waterloo, Ontario | Type: Full-time, Permanent About the Role: We are seeking a Lead Mechanical Designer/Engineer to join a well-established building engineering consulting firm...


  • Kitchener, Canada TalentSphere Staffing Solutions Full time

    OverviewSenior Mechanical Designer/Engineer role at TalentSphere Staffing Solutions in Waterloo, Ontario.Mechanical Engineer – Building Consulting (Waterloo, ON) | Location: Waterloo, Ontario | Type: Full-time, PermanentAbout the Role: We are seeking a Lead Mechanical Designer/Engineer to join a well-established building engineering consulting firm based...


  • Kitchener, Canada TalentSphere Staffing Solutions Full time

    OverviewSenior Mechanical Designer/Engineer role at TalentSphere Staffing Solutions in Waterloo, Ontario.Mechanical Engineer – Building Consulting (Waterloo, ON) | Location: Waterloo, Ontario | Type: Full-time, PermanentAbout the Role: We are seeking a Lead Mechanical Designer/Engineer to join a well-established building engineering consulting firm based...


  • Edmonton, Alberta, TJ N, Canada Design Works Engineering Full time $120,000 - $180,000 per year

    Senior Mechanical EngineerEdmonton, ABWelcome to Design Works EngineeringWe are a multi-discipline engineering firm inclusive of civil engineering, structural engineering, mechanical engineering, electrical engineering, energy modelling, and fire protection design. Our diverse staff all share the same vision – create great projects, and even better...


  • Kitchener, Canada WSP in Canada Full time

    Senior Mechanical Engineer - Power Generation Join to apply for the Senior Mechanical Engineer - Power Generation role at WSP in Canada Job Overview Our Energy subsector, part of WSP’s ERI (Energy, Resources and Industry) sector, supports clients from coast to coast. From small installations to multi‑phase integrated megaprojects, we provide design,...


  • Kitchener, Canada WSP in Canada Full time

    Senior Mechanical Engineer - Power Generation Join to apply for the Senior Mechanical Engineer - Power Generation role at WSP in Canada Job Overview Our Energy subsector, part of WSP’s ERI (Energy, Resources and Industry) sector, supports clients from coast to coast. From small installations to multi‑phase integrated megaprojects, we provide design,...