HVAC O&M Technician III

Top Horizontal Menu Skip to main content Alt + 1 Skip to page footer Alt + 2 Menu , Home Page Options Jobs Location Search Assistance Sign In Hide sub menu Hide Dashboard Alerts Accessibility Home My Dashboard Job Details Top Job Details Here are the details for the selected job. You may need to scroll down to see all the information about the job, including the job description. If you wish to apply for this job click on the Apply button.

WARNING:

Always be on the lookout for job scams! Learn more about identity theft Opens in new window Help information , opens a new window. Info First Job Previous Job 486 of 6,634 Next Job Last Job Share More Like This Between $20.00 and $27.00 Per Hour DOE (Depends on Experience)

HVAC O&M

Technician III TERRA-GEN

Occupation:

Heating, Air Conditioning, and Refrigeration Mechanics and Installers

Location:

Mojave, CA•93501

Job Type:

Regular, Full Time (30 Hours or More), Permanent Employment

Posted:

04/21/2026 Positions available: 2

Source:

CalJOBS

Web Site:

CalJOBS Onsite /

Remote:

Work onsite all of the time

Updated:

04/22/2026

Expires:

06/20/2026 Job #: 19849421 Job Requirements and Properties Help for Job Requirements and Properties. Opens a new window. Veteran Friendly Work Onsite Full Time Education High School Diploma or Equivalent Experience 24 Month(s) Age 18 and up DL Required Schedule Full Time Job Type Regular Duration Permanent Employment Hours 40 Hours Per Week Benefits Job Description Help for Job Description. Opens a new window. Terra-Gen is seeking an Entry-Level

BESS HVAC

Technician to assist in the maintenance and operation of critical cooling systems for Battery Energy Storage Systems (BESS) to standards above the industry's best practices. Unlike standard comfort cooling, this role focuses on high-precision thermal management systems (liquid cooling or forced air) that keep large-scale battery plants within strict operating temperatures. This role focuses on maintaining high-precision thermal management systems, including liquid cooling and forced air systems, to ensure reliability and optimal performance of our utility-scale battery storage assets. The Tech III performs fieldwork under close supervision, including assisting with installations, preventive maintenance, corrective maintenance, and basic troubleshooting of mechanical, refrigeration, and controls systems. This role is primarily focused on learning the systems, developing hands-on skills, and supporting more experienced technicians in maintaining uptime and reliability. The ideal candidate will be a self-starter, is eager to learn, safety-conscious, and able to follow technical guidance and standard operating procedures. Tech III technicians report to the Lead or Tech II technicians and are expected to grow toward increased independence and technical responsibility over time. This full-time position is based near Mojave, CA, and may include rotating schedules, overtime, nights, weekends, holidays and participation in an on-call rotation. Some travel will be required for this position. The position provides structured opportunities for skill development and advancement within Terra-Gen. Essential Duties & Responsibilities Assist in scheduled and unscheduled maintenance of HVAC and thermal management systems. Support troubleshooting and repair of refrigeration, HVAC units, chillers, and liquid-to-air heat exchangers. Assist in testing and validation activities (basic voltage, current, resistance, refrigerant pressure). Monitor cooling loops and assist with flushing, refilling, and leak detection under guidance. Observe and follow high-voltage and environmental safety protocols (NFPA 70E). Document maintenance tasks and report findings to senior technicians. Participate in training, skill development, and on-call rotation as required. Support senior technicians in system commissioning, performance testing, and emergency response. Complete safe work permits and Job Hazard Analyses (JHAs), exercise stop-work authority when required. Complete assigned training and qualification requirements within a specified time frame, including meeting or exceeding minimum test score requirements. Travel to alternate worksites as assigned, to perform essential duties and to provide operational coverage. Perform other qualified duties as assigned.

Qualifications Required:

High school diploma or GED. 0-2 years experience in HVAC, refrigeration, or mechanical maintenance. Basic understanding of electrical circuits and mechanical systems. Willingness to learn and follow safety procedures. Valid driver's license.

Preferred:

HVAC certification or coursework. Familiarity with electrical systems, PV, or energy storage equipment. OSHA 10 or CPR certification.

PHYSICAL DEMANDS

Be able to inspect and work maintenance activities in outdoor construction type areas without handicap access. Regularly required to stand; walk; sit; use hands to finger, handle, or feel; and reach with hands to dexterously maneuver small parts in confined spaces, such as wires, screws, and various components within electrical equipment. Regularly required to kneel, crawl, climb ladders and stairs, use scissor lifts and manlift (cherry picker). Lift 50 pounds unassisted and up to 100 pounds assisted.

WORK ENVIRONMENT

Some of the work will be performed in an office environment; however, the environment for field inspections exposes the employee to the risk of electric shock, heights, moving mechanical parts, hazardous materials, chemicals, fumes, and airborne particles. Additionally, while working outdoors, the employee is exposed to heat, cold, inclement weather, and ultraviolet radiation from the sun. The noise levels may require hearing protection. Terra-Gen is an equal opportunity employer, drug-free workplace, and complies with Americans with Disabilities Act and related laws and regulations as applicable. All applicants are considered for all positions without regard to age, race, religion, color, sex, gender, sexual orientation, pregnancy, national origin, ancestry, physical/mental disability, medical condition, military/veteran status, genetic information, marital status, ethnicity, alienage, or any other protected classification, in accordance with applicable federal, state, and local laws. All offers of employment are contingent upon successful completion of a pre-employment background check and drug screening. Employees must be authorized to work in the US and employment is contingent upon presentation of acceptable documents as evidence of identity and employment authorization, as detailed on Form I-9. Terra-Gen provides a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time off, paid holidays, and 401(k) retirement savings plan with employer match. The posted compensation is the range that we in good faith anticipate relying on when setting wages for this position. We may ultimately pay more or less than the posted range. This salary range may also be modified in the future, depending upon skills, experience, education, and geographical location. Salary Description $20•$27 hourly

TERRA-GEN

Is a Private Sector employer with 5 locations https://www.terra-gen.com

Company Profile:

Established in 2007, Terra-Gen is an owner, operator and developer of utility-scale renewable and clean energy assets with facilities located across the United States. Terra-Gen maintains approximately 3.3 GW and 3,800 MWh of wind, solar and energy storage capacity in operation and construction across 28 renewable power facilities throughout the United States, from New York, to California. Terra-Gen is owned by Energy Capital Partners (ECP), an investor at the forefront of energy transitions who has invested in power generation, renewable storage assets and critical sustainability and decarbonizing infrastructure since the mid 1990s, and Igneo Infrastructure Partners, a leading global investment manager with more than $15 billion in direct infrastructure assets. 250-499 employees Connect with

TERRA-GEN

Other Local Jobs from

TERRA-GEN

Help for Other Local Jobs from. Opens a new window. Change to Grid view Play Carousel Previous Slide Next Slide Slide 1 Slide 2 Battery Storage Operations & Maintenance Technician III TERRA-GEN Mojave, CA Electrical and Electronic Engineering Technologists and Technicians Regular | $28.00•34.00 Hour Preferred Employer 1 week ago Terra-Gen is seeking a BESS (Battery Energy Storage System) Technician III to perform scheduled and unscheduled fieldwork required to operate and maintain the project to standards above industry best practice. Fieldwork includes, but is not limited to installing new systems, troubleshooting, testing, preventive maintenance, corrective maintenance, and assisting site visits. The BESS Technician may also be assigned the responsibility for observing the quality and safety practices of contractors performing BESS technical maintenance and commissioning type work. The ideal candidate would be a self-starter and reports to and takes directions from the Remote Operations Site Supervisor. This is a full-time position and may include working on-call as scheduled, overtime, nights, weekends and/or holidays. Some travel may be required for this position. This role provides opportunities for professional growth.

ESSENTIAL DUTIES AND RESPONSIBILITIES

The candidate may perform work independently and/or in a team environment, depending upon skills, experience and job task. Responsibilities include troubleshooting and repair of DC, low voltage AC, data acquisition, meteorological stations, ESS system components, including grounded circuits, safely and efficiently while using all safety practices. Tests to be performed by a technician include but are not limited to: Open circuit voltage; Operating DC current; and Resistance test. Understand, participate and promote general workplace safety and the ability to follow established environmental, safety and procedural standards as well as assist Terra-Gen to improve upon the existing standards. Ability to excel individually or in a team atmosphere within a collaborative, cross-functional and diverse organization. Ability to establish and maintain a positive and professional working relationship with all individuals. Maturity, professionalism and excellent communication skills, both verbally and in writing with superiors and colleagues. Models professional behaviors of conduct that reflect positively on themselves and the company. Developed interpersonal skills, strong work ethic with High-energy. Detailed orientated with excellent hands-on abilities. Perform preventive maintenance on ESS systems to include thermography of low and medium voltage equipment. Audit third party systems as directed for potential safety concerns, quality of work performed and possible improvement opportunities. Identify, coordinate, and observe contracted workers performing troubleshooting and repairs to OEM equipment to include medium voltage equipment. Document time, material, expenses and maintenance records in O&Ms computer-based maintenance management system (CMMS). Complete assigned training and qualification requirements within a specified time frame, including meeting or exceeding minimum test score requirements. Demonstrate technical aptitude and skill performing field tasks, learning progression and ability to apply training along with the ability to recognize and use stop work authority. Complete Safe work permits and conducts level appropriate JHA's. Prepare reports and communicate to site management the results of maintenance activities. Perform other qualified duties as assigned. Requirements

QUALIFICATIONS

Basic knowledge of ESS and the equipment to include related hazards and how to safely shut it down. Ability to safely troubleshoot system failures, to include ground faults. Strong analytical, diagnostic, and problem-solving skills. Excellent verbal, written, communication and presentation skills. Strong prioritization skills. Driver's license. Journeyman or licensed industrial electrician preferred. Knowledge of building and structural construction techniques preferred. Certified inverter training by Power Electronics, Sungrow preferred. EDUCATION and/or

EXPERIENCE

High school graduate or GED. 1-3+ years' experience at a Utility-scale Solar Plant. Practical experience with electrical wiring and basic construction practices required. Technical/science/engineering degree, certificate with energy systems preferred. Experience with metering and test equipment. Ability to organize, prioritize and complete multiple tasks simultaneously. Ability to demonstrate a responsive, customer service approach to listening and responding to requests. Ability to communicate status of work activities and issues with peers and management as they relate to projects and tasks. Experience reading and interpreting electrical, I&C, and mechanical drawings and technical manuals. Proficient with the use of a computer and the Microsoft Office Suite (Word, Excel, PowerPoint, Outlook). OSHA 10 and CPR qualification preferred.

NFPA 70E

preferred.

COMMUNICATION SKILLS

Provide information/analysis to leadership and department managers. Create written reports/memos/emails to effectively communicate findings internally and externally. Effectively and professionally communicate with leadership, project managers and engineers. Effectively and professionally communicate with vendors and contractors. Effectively and professionally communicate with Quality/Product Development/Purchasing departments.

MATHEMATICAL SKILLS

Ability to analyze operating data and identify anomalies. Ability to calculate figures and amounts such as percentages, lengths, and electrical values. Ability to apply concepts of basic algebra, geometry, and statistical analysis. Ability to analyze and troubleshoot problems with utility scale PV systems. Ability to analyze, troubleshoot and identify problems with utility scale BESS systems.

REASONING ABILITY & DECISION-MAKING SKILLS

Ability to solve practical problems and deal with a variety of concrete variables in situations where only limited standardization may exist. Ability to interpret a variety of instructions furnished in written, verbal, diagram, architectural or electrical drawing, or schedule form.

PHYSICAL DEMANDS

Be able to inspect and work maintenance activities in outdoor construction type areas without handicap access. Regularly required to stand; walk; sit; use hands to finger, handle, or feel; and reach with hands to dexterously maneuver small parts in confined spaces, such as wires, screws, and various components within electrical equipment. Regularly required to kneel, crawl, climb ladders and stairs, use scissor lifts and manlift (cherry picker). Lift 50 pounds unassisted and up to 100 pounds assisted.

WORK ENVIRONMENT

Some of the work will be performed in an office environment; however, the environment for field inspections exposes the employee to the risk of electric shock, heights, moving mechanical parts, hazardous materials, chemicals, fumes, and airborne particles. Additionally, while working outdoors, the employee is exposed to heat, cold, inclement weather, and ultraviolet radiation from the sun. The noise levels may require hearing protection. Terra-Gen is an equal opportunity employer, drug-free workplace, and complies with Americans with Disabilities Act and related laws and regulations as applicable. All applicants are considered for all positions without regard to age, race, religion, color, sex, gender, sexual orientation, pregnancy, national origin, ancestry, physical/mental disability, medical condition, military/veteran status, genetic information, marital status, ethnicity, alienage, or any other protected classification, in accordance with applicable federal, state, and local laws. All offers of employment are contingent upon successful completion of a pre-employment background check and drug screening. All qualified applicants with arrest or conviction records will be considered for employment in accordance with federal, state or local requirements such as the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Employees must be authorized to work in the US and employment is contingent upon presentation of acceptable documents as evidence of identity and employment authorization, as detailed on Form I-9. Terra-Gen provides a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time off, paid holidays, and 401(k) retirement savings plan with employer match. The posted compensation is the range that we in good faith anticipate relying on when setting wages for this position. We may ultimately pay more or less than the posted range and this range is only applicable for jobs to be performed in California. This salary range may also be modified in the future, depending upon skills, experience, education, and geographical location. Salary Description $26.00•$34.00 per hour General Requirements (Outer) Skills (Inner) Specialized (Center) 0% Occupation 0% Education 0% Work Experience 0% Location 0% Salary N/A Job Skills N/A Shift N/A Min. Age N/A Drivers Lic. N/A DL Endorsements N/A Typing N/A Security Clearance N/A Language This chart is used to compare your background against this job to help to determine if you would be a good fit for this position. You match 0% of the General Job Requirements. You match 0% of the Skills Required, and you match 0% of the Specialized Job Requirements. End of interactive chart. View Share General Technician•Wind

TERRA-GEN

Mojave, CA Wind Turbine Service Technicians Regular | $20.00•22.00 Hour Preferred Employer 1 week ago This is a trainee position responsible for assisting with the safe and efficient operation and maintenance of the wind turbines and all associated equipment in accordance with procedures, guidelines, and operating directives in effect. Demonstrate the ability to assist with maintenance and operational duties, perform basic mechanical, electrical, and/or instrumentation tasks. Concurrently, perform and adhere to all training requirements and schedules. Training program requirements are expected to be completed within the designated time frame. General Requirements (Outer) Skills (Inner) Specialized (Center) 0% Occupation 0% Education 0% Work Experience 0% Location 0% Salary N/A Job Skills N/A Shift N/A Min. Age N/A Drivers Lic. N/A DL Endorsements N/A Typing N/A Security Clearance N/A Language This chart is used to compare your background against this job to help to determine if you would be a good fit for this position. You match 0% of the General Job Requirements. You match 0% of the Skills Required, and you match 0% of the Specialized Job Requirements. End of interactive chart. View Share Electrical Testing Engineer

TERRA-GEN

Mojave, CA Electrical Engineers Regular | $130,000.00 Year Preferred Employer 1 week ago Description The Electrical Testing Engineer is responsible for performing testing, commissioning, and troubleshooting of electrical systems in renewable energy projects such as solar PV plants, wind farms, battery energy storage systems (BESS), and substations. This role ensures electrical equipment and systems operate safely, reliably, and in compliance with applicable codes, standards, and project specifications. Concurrently, perform and adhere to all training requirements and schedules. Training program requirements are expected to be completed within the designated time frame.

ESSENTIAL DUTIES AND RESPONSIBILITIES

(Other duties may be assigned as needed) Adheres to, supports and complies with all company safety and environmental policies and practices. Ensure all employees, contractors and visitors conduct themselves safely and within company policies and regulatory guidelines. Complete required annual safety training. Willingness to travel and work extended hours during commissioning phases as required Travel up to 30% (project dependent) Electrical Testing & Commissioning Perform pre commissioning, commissioning, and acceptance testing of: Medium and low voltage equipment Power transformers Switchgear (AIS/GIS) Inverters, converters, and PCS systems Protection relays Cables and grounding systems Execute tests including but not limited to: Insulation resistance (IR) and polarization index (PI) Contact resistance High potential (Hi Pot) testing CT/PT testing Relay protection functional and trip testing Power quality and harmonics analysis Troubleshooting & Support Diagnose and resolve electrical system failures or abnormal performance during testing or operation Support root cause analysis (RCA) for equipment faults and grid related events Provide on site technical support during energization and startup activities Documentation & Reporting Develop and execute testing procedures, checklists, and method statements Record test results and prepare detailed commissioning and test reports Ensure documentation complies with project, client, and regulatory requirements Safety & Compliance Follow all site safety rules, lock out/tag out (LOTO), and energized work procedures Ensure testing activities comply with applicable codes and standards such as:

NEC / NFPA 70 IEEE IEC NERC

(where applicable) Promote a culture of safety and quality on all renewable energy sites Collaboration & Communication Coordinate testing activities with project managers, EPC teams, utilities, and OEMs Support grid interconnection and utility witness testing Participate in design reviews to identify testing and commissioning requirements early

Salary:

$130,000•$150,000 annually Requirements

QUALIFICATIONS

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

MINIMUM REQUIREMENTS

EDUCATION and/or

EXPERIENCE, KNOWLEDGE

•Bachelor's degree in Electrical Engineering or a related field Equivalent industry experience may be considered in lieu of a degree 3-7+ years of electrical testing and commissioning experience Experience in renewable energy projects such as: Utility scale solar PV Wind energy Energy storage (BESS) Substations or grid tie systems Strong understanding of power systems and protection philosophy Hands on experience with electrical test equipment and software Ability to read and interpret: Single line diagrams Schematics and wiring diagrams Protection settings and coordination studies

LANGUAGE SKILLS

•Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals. Ability to communicate orally with other employees including the proper use of a radio. Ability to follow instructions and follow directions from team members. Ability to write routine correspondence.

MATHEMATICAL SKILLS

•Ability to calculate figures and amounts such as proportions, percentages, area, circumference, and volume. Ability to apply concepts of basic algebra and geometry.

COMMUNICATION SKILLS

•Excellent written and verbal communication Ability to read and interpret work from simple and/or complex instructions. Ability to effectively communicate with others.

REASONING ABILITY & DECISION-MAKING SKILLS

•Ability to apply common sense understanding to carry out instructions furnished in written, oral, or diagram form. Willingness to travel and work extended hours during commissioning phases Ability to deal with problems involving several concrete variables in standardized situations. Must be organized, with an ability to stay focused on assigned tasks and possess attention to detail.

CERTIFICATES, LICENSES, REGISTRATIONS

•Possess a valid driver's license for the state in which you are applying. NETA Level II, III, or IV PE License (or EIT working toward PE) OSHA 30 Hour or equivalent safety certification High voltage safety training

PHYSICAL DEMANDS

•The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to finger, handle, or feel. Ability to work in unprotected heights (six feet and below) and work from towers and work platforms up to 300 feet, with required safety equipment. Lifting/lowering 25 to 40 lbs., lifting carrying up to 50 and up to 100 lbs. with assistance; pushing and pulling 45 to 60 lbs.; frequent reaching, squatting, crouching, standing, balance, manual dexterity, stooping, kneeling, walking and sitting. Climb ladders and structures, lift testing equipment, and work in substations Specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception, and the ability to adjust focus.

WORK ENVIRONMENT

•The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. The noise level in the work environment is usually quiet. While performing the duties of this job, the employee is regularly exposed to the risk of electrical shock. The employee is frequently exposed to moving mechanical parts, fumes or airborne particles, toxic or caustic chemicals. The employee is exposed to adverse, outside weather conditions such as high winds, wet/snow and/or humid conditions; extreme heat/cold; precarious places; and vibration. The noise level in the work environment is usually loud and on occasion can be very loud. Terra-Gen is an equal opportunity employer, drug-free workplace, and complies with Americans with Disabilities Act and related laws and regulations as applicable. All applicants are considered for all positions without regard to age, race, religion, color, sex, gender, sexual orientation, pregnancy, national origin, ancestry, physical/mental disability, medical condition, military/veteran status, genetic information, marital status, ethnicity, alienage, or any other protected classification, in accordance with applicable federal, state, and local laws. All offers of employment are contingent upon successful completion of a pre-employment background check and drug screening. All qualified applicants with arrest or conviction records will be considered for employment in accordance with federal, state or local requirements such as the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Employees must be authorized to work in the US and employment is contingent upon presentation of acceptable documents as evidence of identity and employment authorization, as detailed on Form I-9. Terra-Gen provides a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time off, paid holidays, and 401(k) retirement savings plan with employer match. The posted compensation is the range that we in good faith anticipate relying on when setting wages for this position. We may ultimately pay more or less than the posted range and this range is only applicable for jobs to be performed in California. This salary range may also be modified in the future, depending upon skills, experience, education, and geographical location. Salary Description $130,000 annually General Requirements (Outer) Skills (Inner) Specialized (Center) 0% Occupation 0% Education 0% Work Experience 0% Location 0% Salary N/A Job Skills N/A Shift N/A Min. Age N/A Drivers Lic. N/A DL Endorsements N/A Typing N/A Security Clearance N/A Language This chart is used to compare your background against this job to help to determine if you would be a good fit for this position. You match 0% of the General Job Requirements. You match 0% of the Skills Required, and you match 0% of the Specialized Job Requirements. End of interactive chart. View Share See all jobs from

TERRA-GEN

Location/Work Site Information Help for Location/Work Site Information. Opens a new window. Cost of Living Calculator Help for Cost of Living Calculator. Opens a new window. Compensation and Benefits Help for Compensation and Benefits. Opens a new window. Job Type and Required Hours Help for Job Type and Required Hours. Opens a new window. Work Experience Help for Work Experience. Opens a new window. Education and Training Help for Education and Training. Opens a new window. Skills Required Help for Skills Required. Opens a new window. Specialized Job Requirements Help for Specialized Job Requirements. Opens a new window. Occupation Information for Heating, Air Conditioning, and Refrigeration Mechanics and Installers Help for Occupation Information for Heating, Air Conditioning, and Refrigeration Mechanics and Installers. Opens a new window. Other Jobs and Employers Career Ladder Help for Career Ladder. Opens a new window. Personal Requirements Help for Personal Requirements. Opens a new window. Nature of the Work Help for Nature of the Work. Opens a new window. Work Values and Activities Help for Work Values and Activities. Opens a new window. Change Job Search Criteria Print Job Order Opens in new window [ Do you have a comment or concern about this job posting? ] About Sign In / Register Home Site Map Site Search Explore CalJOBS Settings Accessibility Statement Preferred Settings Page Preferences Languages Services For Individuals For Employers Labor Market Mobile App Legal Privacy Statement Terms of Use Disclaimer Equal Employment Opportunity Resources Protect Yourself Assistance CalJOBS Contact Us Statewide Sacramento, CA 94280 Copyright © 1998-2026 Geographic Solutions, Inc. All Rights Reserved. Virtual OneStop®•VOS Sapphire AI v24