Senior Mechanical Engineer

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?

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Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

We believe building engineering is more than systems and structures, it’s about powering progress and enabling innovation. As part of HDR’s Building Engineering Services Group, you’ll help design the critical infrastructure that supports the digital age and shapes the spaces where people work, connect, and thrive. From high-performance data centers driving the future of AI to dynamic commercial environments, your work will directly support technological advancement, sustainability, and human experience. We bring together mechanical, electrical, structural, and civil engineering experts to solve complex design challenges with precision, creativity, and collaboration. Whether you're optimizing energy efficiency, integrating resilient systems, or engineering the backbone of next-generation facilities, your contributions will help define the future of the built environment. This isn’t just a job, it’s a chance to lead innovation, engineer impact, and build a legacy of excellence.

Reporting to the Mechanical Section Manager, the Senior Mechanical Engineer is a member of the integrated project team that contributes Mechanical engineering knowledge and analysis during the design phase of our work. The project mix will span a variety of typologies and systems: assignments include hyperscale data centres and collaborations with other business groups within HDR including Water, Resources, and Transportation Business Groups. The role involves working on multiple projects with project sites in various locations. The Sr Mechanical Engineer may be involved in construction contract administration, site reviews on different projects, and condition assessments. The successful candidate will participate in a growing collaborative and integrated engineering team. Common areas for progression and career growth for this position include leadership positions in Technical Specialization, Operations, or Project Management.

In the role of Senior Mechanical Engineer, we'll count on you to:

• Coordinate the work of Mechanical Engineers with the balance of a multidiscipline team throughout the entire project's development
• Establish client relations, and participate in the marketing, design and production meetings with regard to mechanical systems
• Assume the mechanical lead on many projects
• Participate in reviews with various governing agencies for code compliance
• Conduct schematic, design development and contract document work sessions at project sites in conjunction with the Project Manager, Project Architect and other disciplines
• Coordinate workload through the entire project development to complete documents on schedule
• Track the financial aspects of projects, and coordinate and adjust the work efforts with the team to ensure that the work is completed within the parameters of the agreed-upon schedule
• Work with the Project Manager, Regional Controller and Regional Director for project reviews with corporate management as needed
• Review mechanical documents for areas of conflict with all disciplines
• Write and edit mechanical specifications. Select equipment, mechanical systems and devices
• Coordinate with and assist affected disciplines with addenda, RFIs, and change orders, and take responsibility to incorporate agreed-upon changes into the project documents
• Produce and coordinate several projects concurrently
• Provide construction contract administration as needed
• Conduct QA/QC on the work of other Mechanical Project Engineers, Mechanical Project Coordinators or Mechanical CAD Technicians as needed
• Perform other duties as needed

Preferred Qualifications

• Master's degree in Architectural Engineering with Mechanical emphasis
• Data Centre, Semiconductor, Healthcare, Laboratory or Sports facilities experience
• Experience and/or interest in sustainable design desired
• Experience using AI productivity tools to accelerate project workstreams including technical writing, code and specification research, and performance simulation and modelling
• Computer experience using IESVE or similar software, manufacturer selection software, AI-enhanced engineering
• Strong communication and listening skills.
• Ability to handle multiple concurrent assignments
• Good organizational skills, confident curiosity, strong analytical judgment
• Ability to rigorously audit, validate, and verify all AI-generated outputs (examples: calculations, code interpretations, and routing designs) against core mechanical engineering fundamentals and regulations.

Required Qualifications

• Bachelor's degree in Mechanical Engineering
• A minimum of 10 years in mechanical system design of commercial or institutional buildings
• Requires professional engineering license recognized by the licensing board for the location of the position offered. Example: Professional Engineer (PE or P.Eng) license.
• Strong knowledge of Microsoft Office, MS Project and AutoCAD
• Demonstrated leadership skills, previous team coordination and project management experience
• Previous experience with an architectural/engineering or engineering consulting firm
• An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe

HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

Our Commitment

As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

Primary Location: Canada-Alberta-Calgary

Industry: Building Engineering

Schedule: Full-time

Employee Status: Regular

BusinessClass: Building Mechanical

Job Posting: May 4, 2026

At HDR, we are committed to the principles of employment equity. We are an Affirmative Action and Equal Opportunity Employer ( We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.