Critical Environment Operating Engineer
Quick Summary
Operate and maintain all critical building systems to ensure 100% uptime, including fire/life safety, HVAC, chillers, CRAC/CRAH units, plumbing, controls, UPS systems, generators, switchgear,
2+ years of hands-on experience working in a data center or critical facility environment Demonstrated experience with mission-critical building systems including UPS systems,
As a Critical Environments Operating Engineer at JLL, you'll be at the forefront of maintaining mission-critical data center infrastructure that powers the digital world. This role is essential to ensuring 100% uptime for our clients' most vital operations. You'll be responsible for the operation, monitoring, and maintenance of sophisticated electrical and mechanical systems including UPS, generators, cooling systems, and medium-voltage electrical infrastructure. Working in a fast-paced, high-stakes environment, you'll apply best practice systems and problem-solving skills to keep critical facilities running seamlessly 24/7. This position offers exceptional opportunities to work with cutting-edge technology while building a rewarding career in one of the industry's most dynamic and growing sectors.
Responsibilities
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Operate and maintain all critical building systems to ensure 100% uptime, including fire/life safety, HVAC, chillers, CRAC/CRAH units, plumbing, controls, UPS systems, generators, switchgear, power distribution, and transformers
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Monitor, adjust, and maintain refrigeration, chilled water, air conditioning equipment, boilers, pumps, valves, piping, and electrical systems to ensure optimal performance
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Record equipment readings, analyze system operations, identify problems or malfunctions, and take immediate corrective action as required
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Manage work orders through CMMS, coordinate with vendors, and respond to customer-facing tickets in a timely and professional manner
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Learn and understand the data center infrastructure thoroughly to effectively manage incidents and events that could impact critical systems
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Comply with emergency escalation procedures and respond to site emergencies to protect critical operations
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Maintain safe storage, usage, and disposal of hazardous materials while keeping the workplace clean, organized, and compliant with all safety standards
Requirements
~1 min read2+ years of hands-on experience working in a data center or critical facility environment
Demonstrated experience with mission-critical building systems including UPS systems, emergency generators, switchgear, and power distribution equipment
Strong verbal and written communication skills with the ability to document activities and communicate technical information clearly
Working knowledge of computer applications including MS Office (Word, Excel, Outlook), Google Suite, and computerized maintenance management systems (CMMS)
Physical ability to lift a minimum of 50 lbs, climb ladders up to 30 feet (300-lb weight limit), work at heights, and navigate rooftops
Flexibility to work different schedules, including holidays, and respond to site emergencies as needed
Ability to frequently walk, climb, bend, kneel, stoop, and work overhead in large campus-like settings
Experience using Corrigo work order management system
Universal EPA 608 certification for refrigerant handling
NFPA 70E training for electrical safety in the workplace
Experience with critical infrastructure in mission-critical or 24/7 operational environments
Background in industrial controls, building automation systems (BAS), or energy management systems
Previous experience in vendor management and contractor coordination
Relevant trade certifications or technical training in electrical, mechanical, or HVAC systems
Work with cutting-edge technology in a fast-growing industry
Clear career advancement opportunities in critical infrastructure
Be part of a team that literally keeps the digital world running
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!
What We Offer
~3 min readJLL 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:
Location & Eligibility
Listing Details
- Posted
- September 18, 2026
- First seen
- October 4, 2026
- Last seen
- October 4, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 17%
- Scored at
- October 4, 2026
Signal breakdown
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