Who We Are

At Ecosystem we believe we should be accountable for results. That’s why we've integrated engineering and construction, seeing our projects through from design concept to implementation and commissioning. And that's how we can efficiently solve complex energy and decarbonization challenges in the built environment.

Here are some of the projects we've been working on recently: University of Toronto, Toronto Zoo and San Diego Padres Stadium.

Why This Role Matters

As Senior Building Automation Specialist, you'll play a key technical and strategic role as we continue to grow. You’ll bring your expertise to multimillion-dollar energy projects, turning complex MEP designs into high-performing building systems. By developing custom control strategies and optimizing mechanical systems, you’ll help achieve ambitious energy, comfort, and operational goals. From pre-design through commissioning and beyond, your work will deliver measurable ROI and long-term sustainability.

What You’ll Do

Technical Leadership & System Design

- Conduct on-site assessments of BAS and mechanical systems.
- Analyze BAS legacy sequences and architectures for optimization opportunities.
- Specify BAS components and design custom control strategies.




- Ensure mechanical system designs are fully controllable and aligned with automation strategies.

Project Development & Bidding

- Lead controls assessments during bid phases and generate scope estimates.
- Prepare RFP documentation, including sequences and points lists.
- Support client presentations and internal reviews pre-award.

Construction & Commissioning

- Oversee BAS installations; liaise with contractors and project teams.
- Attend start-ups to ensure readiness and validate programming.
- Confirm implementation of control logic and user-friendly interfaces.
- Troubleshoot issues on-site and resolve them in real-time.
- Lead or support full commissioning to ensure systems perform to specifications.

Optimization, Monitoring & Client Support

- Optimize programming to meet performance guarantees post-installation.
- Train client facilities staff on BAS and integrated system operation and provide clients with transparent, actionable technical insights.
- Monitor system data during the M&V; phase and troubleshoot anomalies.
- Support data collection and reporting for ongoing performance validation.

Mentorship & Internal Innovation

- Mentor junior engineers and technicians on controls design and commissioning best practices.
- Champion cross function knowledge

📌 Senior Building Automation Specialist (Toronto)
🏢 Ecosystem
📍 Toronto