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Operating Engineer S3 - Critical Environments

Job in Sterling, Loudoun County, Virginia, 22170, USA
Listing for: JLL
Full Time position
Listed on 2026-06-13
Job specializations:
  • Engineering
    HVAC Tech / Heating Engineer, Maintenance Technician / Mechanic
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

Summary

The Operating Engineer S3 - Critical Environments will 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 to successfully complete daily/weekly work assignments.

Principal Duties and Responsibilities
  • Maintain, monitor, and perform preventive maintenance and continuous operation of all data center systems to maintain 100% uptime including fire/life safety, mechanical systems (HVAC, chillers, CRAC, CRAH, plumbing, controls), electrical systems (lighting, UPS, ATS, STS, PDU, generators, primary switch gear, power distribution, transformers), and hot water systems. Monitor operation, adjust, and maintain refrigeration, chilled water, air conditioning equipment; boilers; ventilating and water heaters;

    pumps, valves, piping, and filters; other mechanical and electrical equipment. Record readings and make adjustments to ensure proper operation. Monitor BMS and respond to alarms promptly.
  • Analyze operation of various systems, determine causes of problems or malfunctions, and take corrective action.
  • Comply with departmental policy for safe storage, usage, and disposal of hazardous materials and maintain a clean and safe workplace.
  • Learn and understand the data center site to manage incidents and events that risk critical systems.
  • Manage work orders, including CMMS, vendor management, and customer-facing tickets.
  • Understand and comply with emergency escalation procedures.
  • Perform additional job duties as required.
Minimum Experience
  • High School diploma or GED equivalent.
  • 4+ years related work experience in systems, emergency generators, and switchgears.
Language Skills
  • Demonstrated verbal and written communication skills.
  • Ability to read and interpret safety rules, operating and maintenance instructions, and procedure manuals.
  • Ability to read, analyze, and interpret technical procedures, governmental regulations, and codes.
  • Ability to write routine reports and correspondence.
  • Ability to speak effectively before small groups of tenants or fellow employees.
Other

Skills and Abilities
  • Working knowledge or capability to develop proficiency in Microsoft Word, Excel, Outlook, Access, and other software packages.
  • Ability 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
  • Walking large, campus-like settings.
  • Frequent walking, climbing, bending, kneeling, lifting, stooping, and working/extending overhead.
  • Lift a minimum of 50 lbs.
  • Climb stairs and navigate rooftops to access equipment.
  • Use ladders up to 30 ft and work from heights.
  • Climb a ladder with a 300‑lb weight limit.
  • Work different schedules.
  • Work holidays.
  • Respond to site emergencies.
Customer Environment Description
  • A leading global data center developer and operator specializing in delivering state‑of‑the‑art digital infrastructure solutions across the globe.
  • More than 50 high‑performance mission‑critical facilities worldwide, ensuring continuous operation for nearly 800 customers, including approximately 200 Fortune 1000 companies.
  • Demanding customer and fast‑paced environment, serving some of the largest companies in the world.
  • JLL operates 40 sites for the customer that includes campuses and individual data centers, providing operational support including operating engineers, chief operating engineers, facility managers, and regional managers.
  • Support continues to grow with the customer’s business, establishing new sites across the United States.
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