Building Systems Technician

JLL; Fairfax (VA); On-site; USD 55,000 - 85,000; Full time

Job summary

JLL is seeking an Operating Engineer to help keep world-class facility operations running smoothly in premier commercial properties. You will be the technical expert ensuring HVAC, electrical, plumbing, and safety systems operate reliably every day.

You’ll diagnose problems before they become emergencies, optimize equipment performance to save energy costs, and work with contractors to maintain and document maintenance across multiple building systems.

Qualifications

• High school diploma or equivalent.
• U.S. citizenship required.
• 2-4 years hands‑on experience maintaining and repairing commercial building systems in facilities management, property operations, or similar environments.
• Demonstrated ability to analyze operation of building systems, diagnose malfunctions, and implement corrective actions.
• Technical competency in at least one major building system with working knowledge of others.
• Strong troubleshooting skills with the ability to work independently, prioritize tasks, and make sound decisions under pressure.

Responsibilities

• Operate, maintain, and troubleshoot facility systems including HVAC, electrical, plumbing, structural, fire safety, and building controls to ensure optimal performance and compliance with standards.
• Manage facility services activities including purchasing, inventory control, coordinating with outside contractors, and maintaining maintenance records.
• Maintain a safe work environment by handling hazardous materials and keeping areas clean and organized; respond to urgent equipment failures with repairs to minimize downtime.
• Demonstrate technical expertise across building systems and adapt to varied work environments including mechanical rooms and rooftops.

Skills

Troubleshooting

Independent work

Task prioritization

Decision making under pressure

Education

High school diploma

Tools

CMMS

BAS

Microsoft Word

Excel

Job description

JLL is seeking an Operating Engineer to help keep world-class facility operations running smoothly in premier commercial properties. You will be the technical expert ensuring HVAC, electrical, plumbing, and safety systems operate reliably every day.

You’ll diagnose problems before they become emergencies, optimize equipment performance to save energy costs, and work with contractors to maintain and document maintenance across multiple building systems.