Field Service Technician II - BESS

ON.energyis building the backbone of energy and AI infrastructure powering grid-safe data centers and mission-critical facilities. The company supplies and operates hyperscale power systems that solve the toughest resilience challenges, delivering custom solutions for AI data centers, mission-critical facilities, and front-of-the-meter assets. ON recently announced a 5GW partnership, with 3GW currently under construction across multiple hyperscale data center campuses. With patented technology and proprietary software,ON.energy develops

projects worldwide that set new benchmarks for resilience.

Location:
Amarillo, TX

Compensation:
Salary, annual incentive bonus

• Execute scheduled preventative maintenance (PM) tasks on ON.energy BESS equipment, inverters, and associated electrical infrastructure in accordance with OEM requirements and site-specific maintenance plans.
• Perform routine inspections, functional testing, and condition monitoring to identify potential issues before they result in equipment failure or unplanned downtime.
• Maintain accurate PM records and equipment histories within the CMMS, ensuring all work orders are opened, updated, and closed in real time.
• Adhere to PM scheduling windows and notify the O&M Manager promptly of any deferred work, observed anomalies, or required escalations.

• Respond to equipment alarms, faults, and unplanned failures in a timely manner, performing systematic diagnosis and root cause identification.
• Execute testing procedures including insulation resistance, continuity, and functional testing to isolate faults and confirm equipment readiness post-repair.
• Perform component-level repair and replacement on inverters, battery modules, switch gear, and associated balance-of-plant equipment.
• Document all corrective maintenance activities, findings, and parts used within the CMMS and report outcomes to the O&M Manager.

• Participate in a rotating on-call schedule, maintaining availability to respond to site alarms and equipment issues outside of standard business hours, including evenings and weekends.
• Respond to on-call callouts within the required response time and take appropriate action to restore equipment to safe and operational status.
• Communicate clearly with the O&M Manager during after-hours events, providing timely status updates and escalating where required.

• Create, update, and close work orders within the CMMS for all preventative and corrective maintenance activities in accordance with site data entry standards.
• Ensure equipment histories, parts consumption, and labor records are accurately captured to support asset lifecycle management and reporting.
• Follow CMMS workflows and procedures as directed by the O&M Manager; contribute to continuous improvement of maintenance records and documentation quality.

• Adhere to all site safety protocols, OSHA standards, NFPA 70E electrical safety requirements, and ON.energy work instructions at all times.
• Participate actively in toolbox talks, safety briefings, incident investigations, and corrective action implementation.
• Maintain personal protective equipment (PPE) and ensure proper lockout/tagout (LOTO) procedures are followed for all maintenance activities.
• Report all near-misses, incidents, and unsafe conditions to the O&M Manager immediately.

• Associate degree, technical diploma, trade certification, or equivalent hands-on experience in Electrical Technology, Electronics, Power Systems, or a related field.
• 3-5 years of experience maintaining electrical systems, energy storage assets, renewable energy facilities, or critical infrastructure.
• Ability to read and interpret single-line diagrams, wiring schematics, and technical manuals.
• Valid driver's license.
• Ability to obtain and maintain CPR, OSHA 10/30, and NFPA 70E certifications.
• Availability for rotating on-call, weekend, and holiday coverage.
• Must reside in or relocate to the Amarillo, TX area. (relocation bonus will be considered)

• Experience with battery energy storage systems (BESS), inverters,…