Commercial HVAC Refrigeration Technician

About Us

We are a full-service HVAC, building automation, chiller, and retrofit contractor with a reputation for combining high-quality consulting services with customized energy solutions. Our integrated, single-source solutions include turnkey in-house capabilities with design assistance, as well as engineering applications and automated control systems.

Essential Duties & Responsibilities

• The Refrigeration Service Technician is responsible for the operations, repairs, replacement, and preventative maintenance of commercial and industrial refrigeration equipment.

• Must have a working knowledge of rack systems, walk-in coolers and freezers, ice machines, reach-in coolers and freezers, and basic HVAC equipment, including rooftop units, exhaust fans, make-up air units and associated electrical equipment.

• Ability to diagnose and repair refrigeration equipment to include:

• Strong understanding of the refrigeration circuit

• Understand superheating and subcooling.

• Hot gas circuits and operations

• CPR’s EPR’s and head pressure control valves (ORI, OROA, LAC)

• TXV/Orifice operations

• Ability to perform leak checks (electronically and pressurized)

• Ability to solder, braze, and pipe fit.

• Understand reciprocating compressor operation.

• Use different types of compressor oils.

• Understand electrical circuits and processors.

• Defrost clocks.

• Defrost heaters.

• Contactors

• Relays

• CPC Processors

• Technicians will be familiar with all refrigeration equipment and all refrigerants.

• Work with the Dispatch Team to ensure that the workload is accomplished in a complete and timely manner.

• The individual must maintain safe work practices in support of the OSHA Health & Safety and NFPA 70e standards as it applies when performing the assigned duties.

Qualifications

• High School Diploma or GED

• 5 years of experience in maintaining similar type and size commercial equipment, along with a current Universal CFC certification

• Strong oral and written communication required.

• Ability to follow written and verbal instructions and perform duties with minimal supervision in isolated areas.

• Knowledge and experience in the proper use and safe operation of hand tools, equipment, and testing devices necessary to perform all work assignments.

• Ability to stand, sit, or squat for extended periods of time.

• Ability to lift, move, and carry material up to 50 lbs.

• Ability to climb stairs, ladders, and work at extended heights.

• Ability to operate scissors and boom lifts

• Ability to wear Personal Protective Equipment (PPE). i.e., but not limited to, Dust mask, gloves, eye protection, and hearing protection.

• Working knowledge of desktop computers and Internet-based programs

• A company uniform will be issued, and a neat personal appearance will be required.

• This position will require a background check and drug screening.

• Valid Driver’s license and able to maintain a good driving record.

#Mesa #LI-Mesa #LI-HVACjobs #LI-Onsite

Equal Opportunity Employer

As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled

Affirmative Action Policy

Please review ourAffirmative Action Policy ( .

Notice to Prospective Employees

Notice to prospective employees: There have been fraudulent postings and emails regarding job openings. EMCOR Group and its companieslist open positions here ( . Please check our available positions to confirm that a post or email is genuine.

EMCOR Group and its companies do not reach out to individuals to help with marketing or other similar services. If an individual is contacted for services outside of EMCOR’s normal application process – it is probably fraudulent.

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Job Locations US-NV-Las Vegas

ID 2026-50900

Company Mesa Energy Systems, Inc.

Category Operations Services

Position Type Full-Time

Location Type Onsite

Posted Date 4 days ago (7/1/2026 3:07 PM)