MECHANICAL SYSTEMS & COOLING COMMISSIONING LEAD We are seeking a Mechanical Systems & Cooling Commissioning Lead to own commissioning of all mechanical and cooling systems on a large mission-critical infrastructure project.

The scope covers chillers, CDUs, pumps, CRAHs, CRACs, cooling towers, heat exchangers, and liquid cooling infrastructure.

This is a senior staff role within a newly formed commissioning team.

This position is at the site in Regina, Saskatchewan. 14 days on / 7 days off rotation.

Key Responsibilities Plan and execute L2 and L3 mechanical tests including installation verification, flushing and cleaning, pressure and leak testing, system startups, and initial functional checks Lead mock-run of L4 functional performance tests for cooling systems covering flow rates, delta-T performance, redundancy behavior at N+1, component failover, load ramping, and transient behavior under real operating conditions Validate mechanical modules and skids fabricated off-site once installed on site, confirming performance under real load profiles Coordinate with the controls and BMS lead to ensure mechanical sequences of operation are implemented correctly and are fully testable with proper alarms and trend logging in place Validate sequences of operation by confirming they perform as designed under test conditions rather than writing new ones from scratch Contribute to integrated systems test scenarios involving cooling including power events with cooling impact, partial plant failures, and high-density thermal ramp scenarios Document all tests, issues,



and resolutions consistently in partnership with the commissioning program engineer Provide mechanical commissioning input to operations teams to support a clean handover and support future seasonal testing requirements What We Are Looking For Robust background in mission-critical or industrial mechanical and cooling systems including central plant and room-level cooling infrastructure Proven experience leading mechanical commissioning, TAB/FPT, or performance validation on large MEP or industrial projects Ability to understand and constructively challenge mechanical sequences of operation and system designs with a focus on testability and operational resilience Comfortable diagnosing problems during live tests and driving corrective actions across design, vendor, and construction teams in real time Clear communication and documentation skills with the ability to explain mechanical system behavior and risk to non-mechanical stakeholders Preferred Qualifications 7+ years in mechanical commissioning, TAB/FPT, or operations for data centres, industrial facilities, or other mission-critical environments Bachelor''s degree in Mechanical Engineering or equivalent technical experience Familiarity with ASHRAE commissioning guidance and large-facility mechanical commissioning requirements Experience with commissioning platforms such as CxAlloy, Procore, or Facility Grid Relevant certifications such as CxA, BCxP, TAB/NEBB, or P.

Eng are an asset Liquid cooling system experience is preferred but not required as candidates with this background are limited in Canada Full mechanical commissioning background is preferred over TAB or FPT experience alone This role validates sequences of operation rather than writing them Industrial mechanical commissioning experience is welcomed How To Apply: | Subject: Mechanical Systems & Cooling Commissioning Lead

📌 Mechanical Systems & Cooling Commissioning Lead (Regina)
🏢 Alessi Search Group
📍 Regina