Lead Operating Engineer - Critical Environment

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.

As a Critical Environments Lead Engineer at JLL, you will drive excellence in mission-critical facility operations while shaping a brighter way for our clients and teams. This role puts you at the forefront of managing complex engineering systems in data centers, healthcare facilities, laboratories, and other critical environments where uptime and reliability are paramount. You'll lead technical teams, oversee preventive maintenance programs, and ensure compliance with stringent industry standards.

Working in our culture of collaboration, you'll partner with cross-functional teams to optimize facility performance, implement innovative solutions, and maintain the highest levels of operational excellence. This position empowers you to thrive as a technical leader while advancing critical infrastructure that supports our clients' most important operations.

• Lead and mentor a team of technicians and engineers, fostering an environment where everyone is empowered to thrive through skills development and collaborative problem-solving
• Oversee critical systems including UPS, generators, HVAC, fire suppression, and power distribution equipment to ensure 24/7 operational reliability
• Develop and execute comprehensive preventive maintenance programs and standard operating procedures for mission-critical environments
• Respond to emergency situations and coordinate swift resolution of system failures to minimize downtime and maintain service level agreements
• Collaborate with clients, vendors, and internal stakeholders to implement system upgrades and embrace more innovative ways of working
• Conduct technical assessments, root cause analyses, and develop improvement recommendations that strengthen facility performance
• Ensure compliance with industry regulations, safety protocols, and environmental standards while championing best practices across teams

This position requires frequent walking, climbing, bending, kneeling, lifting, stooping, and working/extending overhead, including:

• Walking large, campus-like settings.
• Lifting a minimum of 50 lbs.
• Climbing stairs and navigating rooftops to access equipment.
• Using ladders up to 30 ft and working from heights.
• Ability to climb a ladder with a 300-lb weight limit.
• Must be able to work different schedules.
• Must be able to work holidays.
• Must be able to respond to site emergencies.

• Bachelor's degree in Electrical, Mechanical, or related engineering discipline, or equivalent technical experience
• Minimum 7 years of experience in critical environments such as data centers, hospitals, or mission-critical facilities
• Strong knowledge of electrical systems, HVAC, fire safety, and backup power systems in critical applications
• Professional engineering license or relevant industry certifications (e.g., DCCA, CompTIA Server+, ASHRAE)
• Proven leadership experience managing technical teams and complex projects
• Excellent problem-solving skills and ability to work under pressure in emergency situations

• Advanced degree in Engineering or related technical field
• Experience with Building Management Systems (BMS and DCIM (Data Center Infrastructure Management) platforms
• Knowledge of ITIL framework and facility management best practices
• Industry certifications such as CEM (Certified Energy Manager) or CFM (Certified Facility Manager)
• Experience with renewable energy systems and sustainability initiatives
• Strong communication skills and experience presenting to executive-level stakeholders

Night shift from 6pm to 6am.

$40-$45 per hour.

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.

On-site - Tempe, AZ

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!

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…