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Posted 28 days ago

Senior Mechanical Designer

@ mcCallumSather

Hamilton, Ontario

Full-time8+ years experience
Apply now
SIGNALS

Overview

mcCallumSather is hiring a Senior Mechanical Designer on a full-time basis to join its design team. The role prepares and checks mechanical drawings for HVAC, plumbing, fire protection and medical gas systems on renovation and new construction projects, working from sketches and formal documents and guiding intermediate and junior staff. Candidates must work out of the Hamilton, Kitchener, Toronto or Ottawa locations.

Responsibilities:

  • Prepare contract drawings, details and schedules from concept to construction
  • Draft HVAC, plumbing, fire protection and medical gas systems in Revit MEP
  • Inspect existing facilities to verify system details
  • Coordinate with architectural, electrical, structural and civil disciplines
  • Guide intermediate and junior staff

Requirements summary:

  • 8 to 10 years of mechanical design and drafting experience
  • Experience in laboratories and healthcare facilities
  • Mechanical technologist diploma or mechanical engineering degree
  • Proficiency in Revit MEP, Navisworks and HAP
  • Driver's Licence

Tools & skills

Source and dates

Source type not verified · apify-linkedin

Employer posting date
2026-10-13
First seen by our source
2026-11-10
Source record updated
2026-11-10

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
DepartmentEngineering
Experience8+ years
Hours per week40 (estimated)
Work settingOffice, Client sites
PositionSitting and standing
Physical demandsphysical low · computer high
LanguagesEnglish
Driver’s licencerequired
EducationCollege diploma (preferred), Bachelor’s degree (preferred)
Fields of studyMechanical Engineering, Mechanical Technology, Building Science, Building Systems

Summary and details written by AI from the posting; the employer’s posting is the authority.

mcCallumSather

Job description

Playing an important part in the design team, the Senior Mechanical Designer is a team player with the ability to receive and execute instructions from the Senior Engineer or Project Manager with limited supervision. The Senior Mechanical Designer will have a good understanding of mechanical systems which include HVAC, plumbing & fire protection systems, will prepare drawings of existing building systems, prepare drawings for renovations and new construction projects of varying complexity based on verbal instructions, sketches and/or formal documents. The position also requires preparing plans, section details and other drawings for construction, performing inspections of existing facilities to determine and verify existing system details, and utilizing design equipment and technology. The Senior Mechanical Designer will also provide guidance and delegate to the intermediate & junior staff.

Experience in complex environments such as Laboratories and Health care facilities is required.

**Please note successful candidates are able to work out of our Hamilton, Kitchener, Toronto, or Ottawa locations.

EDUCATION / LICENSING / CERTIFICATION

  • Mechanical Designer - Diploma – Technologist, Mechanical / Building Science / Building Systems
  • Mechanical Engineer – Bachelor’s Degree – Mechanical Engineering
  • Project Portfolio to demonstrate Revit experience and capabilities
  • Driver’s License

PROFESSIONAL EXPERIENCE

  • 8 - 10 years of experience in the preparation, drafting, and design of engineering drawings using appropriate standards for HVAC, plumbing, fire protection and medical gases
  • Proficient with Revit MEP, Navisworks and MS Office
  • Highly motivated individual who works independently
  • An enthusiastic team player who loves challenges, thrives on hard work, and looks forward to sharing in the rewards of corporate and personal success with a team environment
  • Possession of a solid understanding of construction protocols and processes and a proven ability to interpret contract documents (drawings and specifications)
  • Ability to use HAP software load calculation and/or E-Quest for modeling
  • Ability to perform complete and detailed site take-off and direct junior staff
  • Strong interpersonal and communication skills, both written and verbal
  • Highly organized and able to prioritize multiple tasks and demonstrate a flexible approach to work assignments
  • Willingness to continue education in industry related programs
  • Ability to handle stressful situations in an amicable manner
  • Attention to detail and accuracy are required
  • Understanding of sustainable design as it relates to mechanical systems

KNOWLEDGE & SKILLS

  • Work with and support other senior, intermediate and junior members
  • Work directly with and support Senior Engineers along with overseeing and directing junior members of team.
  • Prepare contract drawings, schedules, details and sketches from conceptual design, through to tender and construction
  • Ability to write/edit specifications
  • Ensure Design Standards, Quality Assurance and Quality Control procedures are followed during drawing planning and production
  • Work to and meet project timelines
  • Drafting in BIM REVIT MEP and using Navisworks for coordination
  • Ability to generate mark-ups for intermediate and junior staff on HVAC, Hydronics, Plumbing, Fire protection and specialty Gases
  • Ability to perform Load calculation using HAP
  • Ability to perform system selection, with direction from Senior Engineer such as – diffusers, variable air volumes boxes, terminal heating equipment, air valves, heat pumps, fans…. etc
  • Ability to layout and coordinate complete systems and mechanical rooms from schematic drawings with minimum supervision from Senior Engineer
  • Comprehensive working knowledge of the Ontario Building Code, ASHRAE, NFPA, and industry standards
  • Ability to apply prescriptive requirements of mechanical building services engineering codes with minimal supervision provided by senior staff
  • Strong experience in planning and managing projects, preparation of materials, cost/timing estimates, reporting and producing high level schematics.
  • Experience in HVAC, Hydronics, Plumbing, Fire Protection and Speciality gases with Laboratories, healthcare, and other project typologies at a variety of scales
  • Co-ordinate project requirements with all team members
  • Support Construction Administration personnel including field reviews and co-ordination, review and issuance ofchanges, Clarifications and RFI ‘s
  • Co-ordinate project information and work with all internal and/or external disciplines, including but not limited to, architectural, electrical, structural and civil as required

DEMONSTRATE ABILITY TO:

  • Deliver design excellence: meet/exceed project success criteria
  • Integrate the three pillars of sustainability into the design process: social, financial, environmental
  • Develop and sustain relationships with client and consultant groups
  • Work on multiple projects simultaneously
  • Provide quality documents with minimal mark-ups
  • Execute engineering calculations, small equipment selection, and design layouts with minimal supervision from Senior team members
  • Provide completely coordinated documents
  • Be receptive to feedback to optimize professional growth and contribution
  • Mentor and coach junior team members
  • Work in an environment by sharing, collaborating, and assisting others
  • Engage in self-initiated learning and professional development
  • Reflect the company mission vision and values and contribute positively to the company culture

ADDITIONAL PREFERRED SKILLS AND ASSETS

  • Experience working on LEED and Net Zero projects
  • Energy Modelling
  • As part of the hiring process, applicants are required to take a Behavioural Assessment, using the link below: https://assessment.predictiveindex.com/bo/5P2Z/MechanicalDesigner

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