Posted 4 hours ago
Building Systems Engineer
@ Ainsworth Inc
Mississauga, Ontario
Overview
Ainsworth Inc is hiring a full-time Building Systems Engineer to optimize HVAC and mechanical building systems through data analytics for performance, sustainability and energy efficiency. The role involves commissioning, chiller and boiler plant optimization, fault investigation and client consulting, with travel required. The posting states a salary of $90,000 to $110,000 per year and hybrid working where applicable.
Responsibilities:
- Optimize HVAC and chiller/boiler plant operations using data analysis
- Investigate equipment faults and abnormal performance
- Communicate technical findings and recommendations to clients and teams
- Collaborate with BAS technicians and third-party partners
- Provide consulting and identify business development opportunities
Requirements summary:
- Degree in Mechanical Engineering or related discipline
- Experience in recommissioning, BAS programming or energy management
- Strong thermodynamics and energy-efficiency knowledge
- Ability to interpret wiring diagrams and mechanical drawings
- Valid driver's licence with clean record and ability to travel
- P.Eng. designation considered an asset
Tools & skills
Source and dates
Employer career site / ATS feed · ultipro
- Employer posting date
- 2026-11-06
- First seen by our source
- 2026-11-06
- Source record updated
- 2026-11-06
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Department | Engineering |
| Hours per week | 40 (estimated) |
| Travel | ground: moderate |
| Work setting | Office, Client sites, Plant or factory |
| Position | Sitting and standing |
| Physical demands | physical low · computer high |
| Languages | English |
| Licences & certifications | Professional Engineer (P.Eng.) |
| Driver’s licence | required |
| Background checks | driving record |
| Education | Bachelor’s degree (required) |
| Fields of study | Mechanical Engineering |
| Perks mentioned | Generous paid time off, Retirement plan, Performance bonus, Employee discount, Wellness |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Ainsworth Inc
| Field | Value |
|---|---|
| Open jobs on Jobsy | 115 |
If you thrive in a team-oriented workplace that challenges your skills, to drive your career development, embraces diversity and rewards innovation, with competitive pay and great employee programs, join the GDI Ainsworth team today!
Job Summary:
The Building Systems Engineer optimizes HVAC and mechanical building systems through data analytics to improve performance, sustainability, and energy efficiency.
Key Responsibilities:
- Provide data-driven analysis, ongoing commissioning, and HVAC system optimization across building portfolios.
- Optimize chiller and boiler plant operations through improved control strategies.
- Investigate equipment performance issues, identify abnormal usage, and resolve faults and unstable operating conditions.
- Clearly communicate technical findings, recommendations, and solutions to clients and internal teams.
- Collaborate with BAS technicians and third-party partners to support data-driven maintenance and system improvements.
- Provide consulting services and identify business development opportunities within the existing client base.
- Perform other duties as assigned.
Qualifications:
- Degree in Mechanical Engineering or a related discipline.
- Experience in building recommissioning, BAS programming, or energy management.
- Strong knowledge of thermodynamics and energy-efficiency principles.
- Ability to interpret wiring diagrams and mechanical drawings.
- Strong communication, innovation, relationship-building, and interpersonal skills.
- Valid driver’s license with a clean driving record and the ability to travel.
- Professional Engineer (P.Eng.) designation is considered an asset.
The pay range is $90,000.00 to $110,00.00 per year. Actual salaries will vary based on factors such as education, experience, knowledge, skills, and abilities, as well as alignment with market data. The base salary is just one component of Ainsworth’s total compensation package, which also includes additional rewards and benefits such as short-term incentives and health insurance, among others.
This posting is for an active and current vacancy; interested applicants are encouraged to apply as soon as possible.
Why work at GDI Ainsworth?
GDI Ainsworth is growing at an unprecedented rate and to help attract and retain top talent, we provide benefits on your first day with us. We offer a wide variety of benefits including the following:
Benefits: Comprehensive health, dental and medical benefits, including wellness supports, RSP matching and generous vacation
Rewards: Service milestones and peer recognition plus Employee Discounts and Incentives
Flexibility: Hybrid working models, where applicable
Diversity: An inclusive organization that embraces diversity and belonging; work in a great team atmosphere with future potential for promotion within company
While we appreciate all applications we receive, we advise that only candidates under consideration will be contacted.
GDI Ainsworth is committed to building a diverse and inclusive workplace. Qualified designated group members are encouraged to apply as any reasonable accommodation of qualifications will be considered as per our Accommodation Policy, available upon request.
GDI Ainsworth is an integrated multi-trade company, offering end-to-end services and solutions for all asset maintenance and refurbishment requirements of our customers. We are continually striving to create better and more advanced products as well as provide the highest quality service. We are rapidly growing and need talented professionals to help drive our vision at becoming the best multi-trade company in the country! Join us…. Make a difference.
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