The Building Engineer - HVAC / VRF is responsible for the operation, maintenance, troubleshooting, repair, and optimization of HVAC and Variable Refrigerant Flow (VRF) systems within facilities. This position ensures that all HVAC equipment operates safely, efficiently, and reliably while maintaining occupant comfort and supporting overall facility operations.
Shift: Monday - Friday | Day Shift
Payrate: $48-$58 hourly rate | Weekly pay
Location: Laguna Hills, Ca
The pay listed is the hourly range or the hourly rate for this position. A specific offer will vary based on applicant’s experience, skills, abilities, geographic location, and alignment with market data.
Benefit Information:
ABM offers a comprehensive benefits package. For information about ABM’s benefits, visit ABM 2026 Employee Benefits | Front Line Team Members
Essential Duties and Responsibilities
- Operate, monitor, maintain, and repair HVAC and VRF systems.
- Perform routine inspections of air handling units, fan coil units, condensers, heat pumps, and related equipment.
- Troubleshoot and diagnose HVAC, refrigeration, electrical, and mechanical system issues.
- Perform preventive maintenance on HVAC and VRF equipment according to manufacturer recommendations.
- Monitor refrigerant levels, system pressures, temperatures, and operating performance.
- Replace motors, belts, filters, sensors, actuators, and other HVAC components as required.
- Maintain proper indoor air quality and occupant comfort levels throughout the facility.
- Respond to HVAC-related service requests and emergencies.
Building Automation & Controls
- Monitor and adjust Building Automation Systems (BAS) and HVAC control systems.
- Troubleshoot communication and control issues involving thermostats, controllers, sensors, and VRF network components.
- Assist with system programming adjustments and scheduling functions.
- Analyze trend data to identify operational inefficiencies.
Facility Maintenance
- Assist with general building maintenance activities when required.
- Support maintenance of plumbing, lighting, electrical, and mechanical systems.
- Coordinate maintenance activities with vendors and contractors.
- Maintain equipment rooms, mechanical spaces, and maintenance areas in a clean and organized condition.
Qualifications
Education
- High School Diploma or GED required.
- Technical school, trade school, or associate degree in HVAC, Mechanical Systems, or related field preferred.
Experience
- Minimum 3 to 5 years of commercial HVAC maintenance experience preferred.
- Experience servicing VRF systems such as Mitsubishi, Daikin, LG, Samsung, Fujitsu, or similar platforms preferred.
- Experience working in commercial office buildings, healthcare facilities, hotels, industrial properties, or institutional environments.
Knowledge, Skills, and Abilities
- Strong knowledge of HVAC and refrigeration systems.
- Knowledge of VRF system design, controls, and troubleshooting.
- Understanding of refrigeration cycles and heat pump operation.
- Ability to read blueprints, schematics, wiring diagrams, and technical manuals.
- Familiarity with Building Automation Systems (BAS).
- Working knowledge of electrical systems, motors, drives, and controls.
- Strong troubleshooting and diagnostic skills.
- Ability to prioritize and manage multiple maintenance tasks.
- Strong communication and customer service skills.
- Computer proficiency for work order and maintenance management software.
Certifications Preferred
- EPA Universal Refrigerant Certification (Required or obtained within designated timeframe)
- HVAC Technician Certification
- OSHA 10 or OSHA 30 Certification
- Stationary Engineer License (where applicable)
- Valid Driver's License
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