Senior Mechanical Commissioning Engineer (REMOTE)

JLL empowers you to shape a brighter way.Our people at JLL and JLL Technologies 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.SENIOR MECHANICAL AND CONTROLS COMMISSIONING ENGINEER (Remote)DATA CENTERS & MISSION CRITICAL PROJECTSThis position can be remote (work from home) but must live near a major airport. Up to 50% overnight travelPosition OverviewThe SKAE JLL Data Center Commissioning Group is looking for an experienced Mechanical and Controls Commissioning Engineer to join our growing team in support of our expanding portfolio of mission critical projects in the US (and Canada). Your home location is flexible, and remote work is an option for the right candidate. Must be willing and able to travel overnight in support of projects up to 50% of the calendar this critical role you will lead comprehensive mechanical and controls systems commissioning for small, medium and hyperscale data center projects, colocation facilities, and mission-critical infrastructure with projects ranging from 1MW to 100MW+. You will drive technical excellence and exceptional project delivery as both the lead hands-on mechanical commissioning engineer and represent SKAE JLL as a strategic project leader, ensuring seamless integration of complex mechanical and controls systems in high-stakes environments where downtime is not an option.Key ResponsibilitiesHelp develop detailed commissioning proposals and scope documents based on client RFPs, design drawings, and specifications. Lead pre-commissioning planning sessions with stakeholders to establish testing protocols, acceptance criteria, and project milestones. Manage, perform and document holistic (Level 0 - Level 6) factory and onsite commissioning activities for the mechanical and control systems infrastructure.Technical Commissioning ExecutionExecute comprehensive commissioning of mission-critical systems including CRAH units, chilled water plants, central cooling plants, dry coolers, liquid cooling systems and advanced server rack containment strategies and associated controls and monitoring systems.Quality Assurance & DocumentationDevelop system and equipment specific functional performance tests and integrated systems testing protocols. Create detailed commissioning plans, test procedures, and comprehensive final reports meeting industry standards (ASHRAE Guideline 0 or similar). Document deficiencies using structured tracking systems and oversee resolution through substantial completion.Team Leadership & Stakeholder ManagementHelp direct cross-functional commissioning teams of 2-8+ commissioning engineers and technicians. Coordinate with project stakeholders (design engineers, contractors, facility operators, and client representatives) throughout the project lifecycle from the design phase through transition to operations. On our larger projects you will also conduct commissioning training for Owner's operations staff and provide knowledge transfer documentation.Required QualificationsExperience & Technical Expertise- Minimum 7 years of documented experience in leading the 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 the mechanical and controls commissioning of facilities with power densities exceeding 25kW per rack.- Deep understanding of cooling plant equences of operations and redundancy concepts, as well as their implementation in mission critical designs.- Experience working in partnership with major cooling equipment manufacturers (JCI, Daiken, Trane, Vertiv, Schneider, etc)- Proficiency in the use of commissioning management software platforms (CxAlloy, ACC, Procore, Bluebeam, and similar platforms)Systems Knowledge- 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.Preferred Qualifications- Bachelor's degree in related technical field- Professional Engineer (PE) license and PMP certifications are not required but are a differentiator for this role- Industry recognized commissioning certification (currently or pursuing) strongly preferred- Experience working on hyperscale data center projects (AWS, Microsoft, Google, Meta, etc)Essential Competencies- Technical Leadership: Ability to mentor junior staff and make critical technical decisions under pressure- Team Management: Manage commissioning schedules, ensure optimal team utilization, and provide coverage continuity across projects- Risk Management: Identify potential failure modes (schedule and technical) and develop mitigation strategies- Client Relations: Manage client stakeholder expectations and deliver technical updates with project team support- Problem-Solving: Systematic troubleshooting of complex integrated systems- Documentation: Create clear and detailed technical reports for diverse audiences- Adaptability: Ability to thrive in fast-paced environments with evolving project requirements- Script Development: Create and modify commissioning test scripts, adapting existing procedures for project-specific requirements- Design Review: Interpret project drawings and specifications, identify design issues, and communicate technical concerns effectivelyTravel & Physical RequirementsPosition requires 50% (annual estimate) overnight travel to project sites throughout North America. Must be able to work in active construction environments, climb ladders, and work in mechanical/electrical rooms. Availability for occasional emergency commissioning support and weekend/evening critical testing activities when required.This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without employer sponsorship.Estimated compensation for this position:140,000.00 - 165,000.00 USD per yearThis 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 -Atlanta, GA, Chicago, IL, Dallas, TX, Denver, CO, New York, NY, Phoenix, AZJob Tags:Data Center Maintenance, Data Center OperationsIf 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 tablePersonalized 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: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, e

Created: 2026-01-19