Critical Environments Engineer

Salary: $85,203 - 85,203 per year Requirements:

• We ask for at least 2 years of hands-on experience in a data center or other critical facility setting.
• We look for proven exposure to mission-critical building systems such as UPS units, emergency generators, switchgear, and power distribution equipment.
• We need strong verbal and written communication abilities, including clear documentation of activities and technical information.
• We expect working knowledge of common software tools, including Microsoft Office, Google Suite, and CMMS platforms.
• We require the physical capability to lift up to 50 lbs, climb ladders up to 30 feet, work at heights, and access rooftops.
• We require flexibility to work varied schedules, including holidays, and to respond to emergencies on-site.
• We need the ability to regularly walk, climb, bend, kneel, stoop, and work overhead in large campus-style environments.
• We prefer experience using the Corrigo work order management system.
• We prefer Universal EPA 608 certification for refrigerant handling.
• We prefer NFPA 70E electrical safety training.
• We value experience in mission-critical or 24/7 operational environments.
• We value backgrounds in industrial controls, building automation systems, or energy management systems.
• We prefer prior vendor management and contractor coordination experience.
• We prefer relevant trade certifications or technical training in electrical, mechanical, or HVAC systems.
• We require authorization to work in the United States without visa sponsorship.

• We operate and maintain critical building systems to support 100% uptime, including fire/life safety, HVAC, chillers, CRAC/CRAH units, plumbing, controls, UPS systems, generators, switchgear, power distribution, and transformers.
• We monitor, adjust, and service refrigeration, chilled water, air conditioning equipment, boilers, pumps, valves, piping, and electrical systems to keep performance at its best.
• We record equipment readings, assess system performance, identify faults or malfunctions, and take prompt corrective action.
• We manage work orders through CMMS, coordinate with vendors, and respond to customer tickets quickly and professionally.
• We build a deep understanding of data center infrastructure so we can handle incidents and events that may affect critical systems.
• We follow emergency escalation procedures and respond to site incidents to safeguard critical operations.
• We store, use, and dispose of hazardous materials safely while keeping the workplace orderly and compliant with safety standards.

• CMMS
• Support
• AI
• Excel
• Mobile
• Security

More:

We are JLL, a global leader in real estate and investment management services, helping shape a brighter way forward by combining world-class services, advisory, and technology for our clients. This is an on-site Critical Environments Operating Engineer role in Riverwoods, Illinois, supporting mission-critical data center infrastructure in a fast-paced 24/7 environment. We offer a supportive culture and comprehensive benefits that support well-being and growth, including a 401(k) with company match, medical, dental, and vision coverage, paid parental leave at 100% of salary, paid time off and company holidays, and early access to earned wages through Daily Pay. We also provide opportunities to grow your career with cutting-edge technology in a dynamic and expanding sector.

last updated 40 week of 2026