Senior Mechanical Engineer – Building Systems

Are you an experienced Mechanical Engineer ready to take the next step in your consulting career—one that combines hands-on technical work, project leadership, and meaningful client impact?

Aplin is proud to partner with a respected and well-established consulting engineering firm in Oakville, Ontario, to recruit a Senior Mechanical Engineer to join their growing Mechanical Engineering practice. This role is ideal for a technically strong engineer who enjoys leading projects, mentoring junior staff, and contributing to the long-term growth of a collaborative engineering team.

The Opportunity
As a Senior Mechanical Engineer, you will play a key role in the design and delivery of mechanical building systems across a diverse portfolio of public and private-sector projects. You will remain hands-on technically while providing guidance, oversight, and mentorship within the mechanical group. This position offers a clear pathway toward senior technical leadership and long-term career progression.

What You’ll Do

Mechanical Design & Technical Leadership

• Lead the design of mechanical systems for complex building projects, including HVAC, plumbing, drainage, and fire protection systems.
  
  
• Prepare, review, and stamp mechanical drawings, specifications, and technical reports.
  
  
• Ensure all designs comply with applicable codes, standards, and client requirements.
  
  
• Provide technical direction and quality review support to junior engineers and designers.

Project Delivery

• Manage mechanical project scope, schedules, and deliverables from concept through construction.
  
  
• Coordinate with internal disciplines, architects, contractors, and external stakeholders.
  
  
• Conduct site visits, surveys, and condition assessments as required.
  
  
• Provide construction-phase support, including shop drawing reviews and field reviews.

Client & Stakeholder Engagement

• Act as a key technical point of contact for clients and project partners.
  
  
• Participate in client meetings, design presentations, and proposal development.
  
  
• Support business development efforts through technical input and client relationship building.

Team & Practice Contributions

• Mentor and support the development of junior engineers and designers.
  
  
• Contribute to internal standards, quality control processes, and continuous improvement initiatives.
• Participate in departmental planning and knowledge-sharing activities.

Project Exposure

Projects may include:

• Transit infrastructure (rail and bus facilities)
  
  
• Emergency services buildings (fire, police, EMS)
  
  
• Educational institutions
  
  
• Community centres
  
  
• Municipal, provincial, and federal facilities
  
  
• Laboratories and specialty facilities

What You Bring

• Bachelor’s degree in Mechanical Engineering with P.Eng. designation (required).
  
  
• 7–10+ years of mechanical design experience within a consulting engineering environment.
  
  
• Strong expertise in building systems (HVAC, plumbing, drainage, fire protection).
  
  
• Experience providing technical guidance or informal leadership to junior staff or project teams.
  
  
• Proficiency with AutoCAD and Bluebeam Revu; Revit experience is an asset.
  
  
• Solid understanding of applicable mechanical codes and standards.
  
  
• Strong communication, organizational, and client-facing skills.
  
  
• Valid driver’s license and access to a vehicle for site work.

What Sets You Apart

• A hands-on, detail-oriented approach with strong technical judgment.
  
  
• Ability to manage multiple projects and competing priorities effectively.
  
  
• Interest in long-term career growth within a consulting engineering environment.
  
  
• Collaborative mindset with a desire to mentor and contribute beyond individual projects.

What’s in It for You

• Competitive salary and comprehensive benefits package, including:
  
  
  • Extended health, dental, and vision coverage
    
    
  • Life insurance
    
    
  • On-site parking
    
    
• Monday to Friday schedule (daytime hours; no weekends).
  
  
• A stable, supportive workplace that values technical excellence and professional development.
  
  
• Clear pathway toward senior technical leadership and long-term advancement.
  
  
• The opportunity to work on projects that directly improve communities across Ontario.

At Aplin — together with our brands CompuStaff and Impact Recruitment — we connect great people with great organizations across North America. We believe diverse teams build stronger companies, and we welcome applicants from all backgrounds, experiences, and perspectives. We use AI tools to assist in a fair and efficient matching process, helping our recruiters connect the right people with the right opportunities. To be considered, applicants must be legally entitled to work in Canada, including holding any required permits. Our recruitment services are always free for job seekers.