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JL

Operating Engineer S3 - Critical Environments

JLL
Carrollton, United Statesfull_timeVerifiedPosted 4 Jun 2026

About the role

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.   

Find your next move at JLL and build a fulfilling career 

At JLL, we value what makes you unique, and we’re committed to give you the opportunity, knowledge and tools to own your success. Explore opportunities to advance your career from within, whether you’re looking to move up, broaden your experience or deepen your expertise. 

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Job Description

Summary

The Operating Engineer S3 - Critical Environments will have a strong focus on operating, maintaining, troubleshooting and repairing facility equipment on all systems. Individuals are expected to demonstrate technical expertise in one craft area (Electrical, HVAC, Piping/Plumbing, Central Utility Plant Operations) and be multi-skilled in others in order to successfully complete daily/weekly work assignments.

Principal Duties and Responsibilities

Task will include but not be limited to:

  • Responsible for maintaining, monitoring, and performing preventive maintenance and continuous operation of all data center systems to maintain 100% Up-time including: fire/life safety, mechanical systems such as (HVAC, chillers, crac, crah, plumbing, controls), electrical including emergency backup systems such as (lighting, UPS, ATS, STS, PDU, generators, primary switchgear, power distribution, transformers), and hot water systems. Monitors operation, adjusts, and maintains refrigeration, chilled water, and air conditioning equipment; boilers, and ventilating and water heaters; pumps, valves, piping, and filters; other mechanical and electrical equipment.  Must record readings and make and adjust where necessary to ensure proper operation of equipment. Monitor building management systems and respond to alarms and alerts promptly.

  • Requires the ability to analyze the operation of various systems, determine the cause of any problems/malfunctions and take corrective action as required

  • Comply with departmental policy for the safe storage, usage, and disposal of hazardous materials. Maintains a clean and safe workplace.

  • Learn and understand the data center site in-order to manage incidents and events that put the critical systems at risk.

  • Work order management, including CMMS, Vendor Management, and Customer Facing Tickets.

  • Understanding and complying with emergency escalation procedures.

  • Perform additional job duties as required.

Minimum Experience:

Education & Experience

  • Systems, emergency generators, and switchgears.

  • High School diploma or GED equivalent

  • 4+ years related work experience.

Language Skills 

  • Demonstrated verbal/written communication skills.

  • Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals.

  • Ability to read, analyze, and interpret technical procedures, or governmental regulations and codes.

  • Ability to write routine reports and correspondence.

  • Ability to speak effectively before small groups of tenants or fellow employees.

Other Skill and Abilities

  • Working knowledge or the capability of developing proficient knowledge of Microsoft Word, Microsoft Excel, Outlook and Microsoft Access and any other software packages.

  • Must be able to professionally interact with tenants and contractors.

Preferred Requirements:

  • Corrigo Experience.

  • MCIM / Salesforce Experience.

  • Zendesk Experience.

  • Service Now Experience.

  • Hands-on experience working in a data center/critical facility, including UPS.

Physical Requirements:

This position will require the following:

  • Walking large, campus-like settings.

  • Frequent walking, climbing, bending, kneeling, lifting, stooping, and wor

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Company

JLL

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