Jll
Real Estate
SeniorMechanicalCommissioningEngineer
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“Senior Mechanical Commissioning Engineer at Jll. Skills: Mechanical Commissioning, Controls Commissioning, Data Center Cooling, Mission Critical Systems. Develop commissioning proposals. Manage commissioning activities”
What You'll Achieve.
Ensuring seamless integration of complex mechanical and controls systems; Ensuring downtime is not an option; Meeting industry standards (ASHRAE Guideline 0 or similar); Overseeing resolution through substantial completion; Ensuring optimal team utilization
Industry & Context.
Identifying potential failure modes; Developing mitigation strategies; Identifying design issues
Must live near a major airport, Up to 50% overnight travel, Work from home available, Work in active construction environments, Climb ladders, Work in mechanical/electrical rooms, Availability for occasional emergency commissioning support, Weekend/evening critical testing activities, Must be authorized to work in the United States without sponsorship
What They're Looking For.
Must Have
Minimum 7 years of documented experience leading hands-on data center commissioning activities, at least 5 years specifically in data center cooling systems and building monitoring and automation commissioning, Proven track record leading mechanical and controls commissioning of facilities with power densities exceeding 25kW per rack, Deep understanding of cooling plant sequences of operations, redundancy concepts, and their implementation in mission critical designs, Experience working in partnership with major cooling equipment manufacturers (JCI, Daikin, Trane, Vertiv, Schneider, etc.), Proficiency in commissioning management software platforms (CxAlloy, ACC, Procore, Bluebeam, and similar), Advanced knowledge of commissioning processes for data center cooling infrastructure and building monitoring and controls platforms, Expertise in precision HVAC systems, glycol cooling, and thermal management strategies including liquid cooling applications, understanding of BAS/DCIM integration, monitoring protocols, and alarm management protocols, Ability to travel 50% annually throughout North America and work in active construction environments, climb ladders, and work in mechanical/electrical rooms with availability for occasional emergency commissioning support and weekend/evening critical testing activities
Nice to Have
Bachelor's degree in related technical field, Professional Engineer (PE) license, PMP certifications, Industry recognized commissioning certification (currently or pursuing), Experience working on hyperscale data center projects (AWS, Microsoft, Google, Meta, etc.)
What You'll Do.
Develop commissioning proposals
Manage commissioning activities
Execute commissioning of mission-critical systems
Develop system-specific tests
Create commissioning plans
Document deficiencies
Direct commissioning teams
Coordinate with stakeholders
Conduct commissioning training
Manage commissioning schedules
Interpret project drawings
Communicate technical concerns
How You'll Work.
Team & Collaboration
Lead pre-commissioning planning sessions with stakeholders; Direct cross-functional commissioning teams of 2-8+ engineers and technicians; Coordinating with project stakeholders throughout the project lifecycle; Communicating technical concerns effectively to clients and project teams
Communication Scope
Communicating technical concerns effectively
Process & Methodology
Project leader, Manage commissioning schedules, Develop mitigation strategies
Full Job Description
**JLL empowers you to shape a brighter way**. Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you’ve got deep experience in commercial real estate, skilled trades or technology, or you’re looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward. # **DATA CENTERS & MISSION CRITICAL PROJECTS** _This position can be remote (work from home) but must live near a major airport with up to 50% overnight travel._ ## What this job involves: The SKAE JLL Data Center Commissioning Group seeks an experienced Mechanical and Controls Commissioning Engineer to lead comprehensive commissioning for small, medium, and hyperscale data center projects ranging from 1MW to 100MW+. In this critical role, you'll drive technical excellence as both a hands-on mechanical commissioning engineer and strategic project leader, ensuring seamless integration of complex mechanical and controls systems in mission-critical environments where downtime is not an option. Your home location is flexible with remote work available for the right candidate. ## Your day-to-day tasks will include: * Developing detailed commissioning proposals and scope documents based on client RFPs, design drawings, and specifications while leading pre-commissioning planning sessions with stakeholders * Managing and performing holistic factory and onsite commissioning activities (Level 0 – Level 6) for mechanical and control systems infrastructure * Executing comprehensive commissioning of mission-critical systems including CRAH units, chilled water plants, central cooling plants, dry coolers, liquid cooling systems, advanced server rack containment strategies, and associated controls and monitoring systems * Dev
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