ESS Field Support Technician

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Lion Energy

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Murrieta, CA, United States

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Job Description

Job Description

POSITION SUMMARY:

The ESS Field Support Technician will provide on-site technical support, maintenance, and troubleshooting for Battery Energy Storage Systems (BESS) and associated power infrastructure. The role plays a critical part in ensuring reliable system operation and optimal performance across residential, commercial, industrial, and utility-scale energy storage assets.

RESPONSIBILITIES/DUTIES:

  • Install, commission, and maintain battery energy storage systems and power conversion units.
  • Perform diagnostics, system testing, calibration, and firmware updates.
  • Troubleshoot electrical and control issues to minimize downtime.
  • Conduct preventive maintenance and safety checks on batteries, inverters, and HVAC systems.
  • Complete field reports, document test results, and communicate findings to engineering teams.
  • Follow all safety, environmental, and regulatory standards (OSHA, NFPA 70E, NEC).
  • Provide on-site customer support and basic operator training.

REQUIRED EDUCATION / EXPERIENCE:

  • Education: High school diploma required; Associate’s in electrical or mechanical technology preferred.
  • Experience: 2–5 years in electrical systems, renewable energy, or industrial maintenance.
  • Technical Skills:
  • Battery systems (Li-ion, LFP) and inverters
  • Electrical troubleshooting (AC/DC up to 1500V)
  • SCADA, Modbus, and PLC familiarity
  • Use of diagnostic tools (multimeter, IR camera, oscilloscope)
  • Certifications (Preferred): OSHA 30, NFPA 70E, First Aid/CPR

Work Environment
  • Travel up to 90% to customer sites
  • Physical tasks: lifting up-to 100 lbs, working outdoors, confined spaces
  • Flexible schedule to meet field demands

ABOUT LION ENERGY:

We help individuals, families, and organizations become energy independent. We do this by

providing smart lithium energy storage systems that range from small hand-held power

banks, solar generators, and RV batteries to home and large custom solutions that are safe,

silent, and renewable. They are good for people and for our planet!

Lion Energy is a top 10 fastest-growing company in the state of Utah. We have a very friendly

work environment. Although it can be fast-paced, everyone gets along and works together

as a team. We are looking for people who can contribute towards our vision!