Lead Mechanical Engineer - Building Services
Confirmed on the employer's own hiring board on Nov 9, 2026. First seen by Alion on Nov 9, 2026. Tatham Engineering scores C on the Alion truth index.
We are seeking a Lead Mechanical Engineer to lead the design and execution of complex projects across the Commercial, Institutional, Industrial, and Municipal sectors. This role requires technical expertise in HVAC, domestic water, sanitary and storm drainage, building automation, and fire protection systems.
The ideal candidate will balance technical design with project management and the mentorship of junior staff. There is significant potential to evolve into a business development-focused role, increasing your client-facing presence and helping shape the firm's growth and partnerships.
This position can be based out of our Collingwood, Barrie or Guelph office.
Key Responsibilities
Prepare mechanical engineering designs and provide support to technicians and other staff;
Prepare design calculations in accordance with codes and published standards;
Prepare and review specifications and construction contract documents;
Utilize software including AutoCAD or REVIT as a tool to complete design work;
Delegation of tasks to staff and review of work completed by staff;
Assist to mentor and develop junior staff
Build relationships with existing clients, potential clients, agencies, contractors and suppliers;
Identify project opportunities in existing and new project areas
Key Position Requirements
P.Eng. in the province of Ontario, registered with PEO
Degree in Mechanical Engineering or related discipline
Minimum of 10 years of mechanical engineering experience in the consulting industry
Working knowledge of the Ontario Building Code, and associated standards including ASHRAE, CSA and NFPA.
Detailed engineering experience with mechanical systems including preparation of calculations and reports, equipment selection, and design of HVAC, plumbing, fire protection, and building automation systems.
Experience preparing specifications for equipment and associated systems
Proficiency in AutoCAD software
Full knowledge of Microsoft Office Suite
Experience with REVIT would be an asset
Experience with decarbonization and energy efficiency retrofits would be an asset
Experience with business development would be an asset
Strong communication and interpersonal skills
Excellent technical and analytical skills
Enthusiasm to work in a team structure and a willingness to guide, help and collaborate with others