Operating Engineer I – 24/7 Building Systems

JLL; Costa Mesa (CA); On-site; USD 90,000 - 100,000; Full time

Benefits offered by this job

401(k) plan with company contributions

Medical, Dental & Vision Care

Paid parental leave

Job summary

JLL is seeking an Operating Engineer in Costa Mesa, CA to operate, maintain and repair critical facility systems across HVAC, electrical, plumbing, and mechanical equipment. The role emphasizes preventive maintenance, energy efficiency, and safety compliance in a fast-paced commercial environment.

You will diagnose issues using BAS, read blueprints, and perform routine checks, while supporting emergency response and daily CMMS tasks.

Qualifications

• U.S. Citizenship or work authorization required.
• High School diploma or GED plus two years of trade school in electrical, refrigeration, HVAC or related disciplines.
• Universal CFC Technician Certification.
• Minimum 1 year of experience in commercial/industrial facility maintenance.
• Experience with HVAC, plumbing, electrical, and building systems.
• Experience using CMMS/PM software and BAS.

Responsibilities

• Operate, maintain, troubleshoot, and repair HVAC, refrigeration, plumbing, electrical, and mechanical building systems.
• Diagnose equipment issues using BAS, blueprints, schematics, and readings.
• Perform preventive maintenance on HVACR systems, chillers, electrical distribution, and related equipment.
• Maintain low/medium voltage electrical systems and lighting per safety standards.
• Install and maintain plumbing systems, doors, gates, and fire safety systems.
• Conduct daily startup and checks for boilers, pumps, elevators, and other building systems.
• Complete general facility maintenance and CMMS work orders and assist emergency response.

Skills

HVAC systems

Electrical systems

Plumbing

General building systems

Education

High School diploma or GED + trade school in electrical/HVAC/refrigeration

Tools

CMMS/PM software

Building Automation Systems (BAS)

Job description

JLL is seeking an Operating Engineer in Costa Mesa, CA to operate, maintain and repair critical facility systems across HVAC, electrical, plumbing, and mechanical equipment. The role emphasizes preventive maintenance, energy efficiency, and safety compliance in a fast-paced commercial environment.

You will diagnose issues using BAS, read blueprints, and perform routine checks, while supporting emergency response and daily CMMS tasks.