HVAC/R Service Technician - Light Commercial
About the job
- A high school diploma, GED, or completion of a trade program or technical school is required.
- EPA Certification (Type I, II and III) is required.
- All required safety certifications are required.
- Three to five years of work experience in commercial HVAC and refrigeration is required.
- Experience working on refrigeration equipment in convenience stores, supermarkets, industrial chillers, and cooling towers is required.
- Expert knowledge of tools, equipment, and materials common to the refrigeration, HVAC, and electrical trades is required.
- Expert knowledge of refrigeration and HVAC theory and application is required.
- Expert knowledge of applicable electrical codes, standards, and regulations is required.
- Expert knowledge of electrical applications for high- and low-voltage electric systems is required.
- Expert knowledge of water flow, water-cooled equipment, and controls is required.
- Expert knowledge of airflow and pressure is required.
- Expert knowledge of centrifugal, piston, and screw compressors is required.
- Expert knowledge of evaporative and cooling towers, chillers, and purging units is required.
- Expert knowledge of ammonia systems is required.
- Expert skill in installing, repairing, and maintaining all types of electrical system equipment and components is required.
- Understanding of quality management systems and safety procedures is required.
- Ability to use hand tools, machine tools, and precision measuring instruments is required.
- Ability to supervise team members is required.
- Ability to bid jobs and prepare material and equipment lists is required.
- Verbal and written communication skills are required.
- A good driving record and a valid driver's license at all times are required.
- Ability to follow company policies and procedures and applicable state and federal laws is required.
- Ability to use email, Word, Excel, and similar business tools is required.
- Ability to work at heights using ladders or scissor lifts and in environments with extreme cold, high heat, inclement weather, heat, humidity, dust, and elevated noise is required.
- Ability to perform strenuous physical labor, including walking, standing, driving, bending, kneeling, stooping, crouching, crawling, climbing, and lifting or moving up to 25 pounds regularly and up to 50 pounds occasionally, is required.
- The role requires close, distance, color, peripheral, and depth vision, and the ability to adjust focus.
- Provide preventative and corrective service on refrigeration and HVAC equipment.
- Provide preventative and corrective service on screw, centrifugal, and reciprocating compressors.
- Read blueprints, run conduit, wire devices, troubleshoot, and perform quality control testing.
- Read and interpret mechanical and electrical drawings and code specifications to determine wiring layouts.
- Troubleshoot, test, and repair electrical systems and power distribution systems.
- Use construction and fabrication skills.
- Ensure and monitor safe work practices and safety guidelines.
- Participate in all elements of the Process Safety Management and Risk Management Plan programs.
- Perform complete inspections with minimal errors.
- Perform upgrades or preventive maintenance on mechanical and electrical control systems.
- Provide informal and formal training for other team members as required.
- Supervise team members.
- Bid jobs as needed.
- Perform other duties as assigned.
About the company
CoolSys provides refrigeration and HVAC services to retail, commercial, and industrial clients. It designs, installs, and remodels systems, converts refrigerants, performs preventative maintenance, repairs, and optimizes energy use and overall system performance. Their products are not a physical device but a service offering: engineers create system designs, technicians install and service equipment, and ongoing monitoring and maintenance help keep temperatures stable and energy use efficient. What sets CoolSys apart is its broad, industry-focused experience across grocery, food service, telecommunication, manufacturing, education, entertainment, and pharma sectors, plus a persistent emphasis on reliability, integrity, and meeting client commitments while addressing environmental sustainability. The company aims to improve clients’ operations, experiences, and work environments through high-quality, dependable service and energy-efficient, properly maintained systems.
Company Size
1,001-5,000
Company Stage
Debt Financing
Total Funding
$150M
Headquarters
Brea, California
Founded
2017
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Simplify's Take
What believers are saying
- Energy Squared joined on August 17, 2026, strengthening MEPR design capabilities.
- Ares-backed credit support in September 2025 extended liquidity and refinanced prior lenders.
- CoolSys keeps buying specialists, including 1GNITE, Lima, and Georgia Air Solutions.
What critics are saying
- June 2026 amendments added PIK debt through 2027, signaling financing strain.
- Randolph v. CoolSys and the 2026 wage-hour settlement expose recurring labor liabilities.
- Ares ownership and relentless add-ons create integration drag; one failed merger hurts service quality.
What makes CoolSys unique
- CoolSys unified Source Refrigeration under one brand in July 2026.
- Its 2026 portfolio spans refrigeration, HVAC, energy, engineering, and equipment removal.
- Recurring maintenance contracts drove 54% of revenue and 96% customer retention in 2025.
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Benefits
- Health Insurance
- Dental Insurance
- Vision Insurance
- Paid Vacation
- Paid Holidays
- 401(k) Company Match
- Training Programs
- Tuition Reimbursement
- Pet Insurance
- Employee Discounts
- Performance Bonus