Building Engineer - HVAC / VRF
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Before you apply
Salary$48 – $58/hr
LocationLaguna Hills, CA
Work modeon-site
Typefull-time
SeniorityMid
Experience3–5 yrs
DepartmentAble Services Field, Engineering, Building Engineer
Company size10,000+ people
PostedSep 15, 2026 · 1mo ago
Verified live20h ago
At a glanceSummarised by Seekless from the posting.
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
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
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
High School Diploma or GED
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
EPA Universal Refrigerant Certification
Technical school, trade school, or associate degree in HVAC, Mechanical Systems, or related field
Minimum 3 to 5 years of commercial HVAC maintenance experience
Experience servicing VRF systems such as Mitsubishi, Daikin, LG, Samsung, Fujitsu, or similar platforms
Experience working in commercial office buildings, healthcare facilities, hotels, industrial properties, or institutional environments
HVAC Technician Certification
OSHA 10 or OSHA 30 Certification
Stationary Engineer License
Valid Driver's License
Skills
HVAC
VRF
Building Automation Systems (BAS)
Electrical
Mechanical
Refrigeration
Work order and maintenance management software
About the role
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
Legal
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
Nice to have
•
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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