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Battery Storage Operations and Maintenance Technician III

Terra-Gen, LLC
Mojave, CA Full Time
POSTED ON 7/20/2026
AVAILABLE BEFORE 8/18/2026
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 OandMs 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 JHAs.
  • Prepare reports and communicate to site management the results of maintenance activities.
  • Perform other qualified duties as assigned.

Requirements

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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.
  • Drivers 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, IandC, 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 And 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 man

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