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Lead Operating Engineer

Job in McLean, Fairfax County, Virginia, USA
Listing for: JLL
Full Time position
Listed on 2026-06-05
Job specializations:
  • Trades / Skilled Labor
    HVAC Tech / Heating Engineer, Maintenance Technician / Mechanic
Job Description & How to Apply Below
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.

Lead Operating Engineer - JLL

What this job involves:

As a Lead Operating Engineer at JLL, you'll be the technical backbone of critical facility operations, ensuring commercial building systems operate at peak performance 24/7. This role combines hands-on technical expertise with leadership responsibilities across mechanical, electrical, plumbing, and HVAC systems. You'll serve as the go-to expert for complex equipment troubleshooting while maintaining the safety, efficiency, and reliability of building infrastructure that supports our clients' business operations.

Your work directly impacts tenant satisfaction, operational costs, and building performance-making you an essential contributor to JLL's mission of delivering exceptional facility management services.

What your day to day will look like:

* Operate, monitor, and maintain mechanical, electrical, plumbing, structural, fire/life safety, and control systems across assigned facilities, ensuring all equipment meets or exceeds applicable performance and safety standards.

* Perform preventative maintenance tasks including cleaning, inspecting, calibrating, and replacing components on HVAC systems and associated equipment to maintain optimum performance levels and prevent costly breakdowns.

* Record equipment readings, make necessary adjustments, and document system performance to ensure proper operation while identifying potential issues before they escalate.

* Travel between multiple buildings within your assigned geography to execute work orders, respond to service calls, and maintain building systems with flexibility and efficiency.

* Manage facility services including purchasing and inventory control for parts and supplies, coordinate with outside contractors to ensure quality work at competitive pricing, and maintain accurate maintenance records.

* Maintain a clean, safe work environment by properly storing, using, and disposing of hazardous materials in compliance with departmental safety policies and regulations.

* Perform physical tasks including bending, kneeling, squatting, standing, reaching, and accessing equipment in various positions for extended periods, while working in diverse environmental conditions including heat, cold, rain, and varying daylight hours.

Required Qualifications:

* 5+ years of hands-on experience maintaining and repairing commercial building systems including HVAC, electrical, plumbing, and mechanical equipment.

* EPA 608 Type II Certification (required by law for handling refrigerants).

* Demonstrated ability to analyze commercial or industrial mechanical, electrical, plumbing, and HVAC systems, diagnose malfunctions, and implement effective corrective solutions.

* Working knowledge of Building Management Systems (BMS) and machine controls for monitoring and operating building equipment.

* Proficiency with computer applications including Microsoft Word and Excel for documentation, reporting, and communication.

* High School diploma or GED equivalent.

* Valid driver's license and ability to maintain a company service vehicle for travel between building locations.

Preferred Qualifications:

* EPA 608 Universal Certification, demonstrating advanced refrigerant handling capabilities across all system types.

* Two years of formal trades schooling or technical education in electrical system design, refrigeration, or HVAC technology.

* Experience with preventative maintenance software systems and computerized maintenance management systems (CMMS).

* Universal or specialty certifications in HVAC, electrical, or plumbing trades demonstrating advanced technical knowledge.

* Prior experience in a lead or mentoring role, guiding other technicians or coordinating maintenance activities across multiple sites.

Location:

Onsite (with travel between buildings within assigned geography)

This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.

Location:

On-site
-McLean, VA

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!

Personalized benefits that support personal well-being and growth:

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…
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