Senior Mechanical Commissioning Engineer (REMOTE)

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 Developing system-specific functional performance tests and integrated systems testing protocols that meet industry standards (ASHRAE Guideline 0 or similar) Creating commissioning plans, test procedures, and comprehensive final reports while documenting deficiencies using structured tracking systems and overseeing resolution through substantial completion Directing cross-functional commissioning teams of 2-8+ engineers and technicians while coordinating with project stakeholders throughout the project lifecycle from design phase through transition to operations Conducting commissioning training for Owner's operations staff and providing knowledge transfer documentation on larger projects Managing commissioning schedules, ensuring optimal team utilization, identifying potential failure modes, and developing mitigation strategies Interpreting project drawings and specifications, identifying design issues, and communicating technical concerns effectively to clients and project teams Desired experience and technical skills: Requirements: Minimum 7 years of documented experience leading hands-on data center commissioning activities with 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 Strong 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 Preferred: Bachelor's degree in related technical field Professional Engineer (PE) license and PMP certifications Industry recognized commissioning certification (currently or pursuing) Experience working on hyperscale data center projects (AWS, Microsoft, Google, Meta, etc.) This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship. Estimated compensation for this position: 140,000.00 – 160,000.00 USD per year This range is an estimate and actual compensation may differ. Final compensation packages are determined by various considerations including but not limited to candidate qualifications, location, market conditions, and internal considerations. Location: Remote –Denver, CO Job Tags: Data Center Maintenance, Data Center Operations If this job description resonates with you, we encourage you to apply, even if you don’t meet all the requirements. We’re interested in getting to know you and what you bring to the table! Personalized benefits that support personal well-being and growth: JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits may include: 401(k) plan with matching company contributions Comprehensive Medical, Dental & Vision Care Paid parental leave at 100% of salary Paid Time Off and Company Holidays Early access to earned wages through Daily Pay At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing. JLL Privacy Notice Jones Lang LaSalle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. 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