ON.energy is building the power infrastructure that makes the AI era possible. As AI demand surges past what the grid and traditional data centers can support, ON.energy provides a new class of power technology proven at gigawatt scale and trusted by the world’s leading cloud and AI companies. Our systems are already deployed across 2.5 GW of hyper-scale campuses, validated by top U.S. national labs, and certified for grid-safe operation by major utilities. With real products in the field, we’re scaling faster than the grid can, transforming power from a bottleneck into a competitive advantage for the companies building the future.

KEY RESPONSIBILITIES

Preventative Maintenance

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.

Reactive Maintenance & Troubleshooting

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, switchgear, 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.

On-Call & After-Hours Response

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.

CMMS & Data Integrity

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.

Safety & Compliance

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.

Qualifications

Required

Associate degree, technical diploma, trade certification, or equivalent hands-on experience in Electrical Technology, Electronics, Power Systems, or a related field.
2+ 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.

Preferred

Experience with battery energy storage systems (BESS), inverters, switchgear, or medium/high-voltage equipment.
Experience using CMMS platforms such as IBM Maximo, UpKeep, Fiix, or similar systems.

What We Offer

Competitive compensation with overtime eligibility
Relocation assistance for qualified candidates
On-call differential pay
Medical, dental, and vision insurance
401(k) retirement plan with company match
Opportunity to work on a high-profile data center project utilizing advanced energy storage technology
Career growth within a rapidly expanding energy infrastructure company

ON.energy is committed to creating an inclusive workplace and welcomes applicants from diverse backgrounds and experiences.

For US-based roles - What you’ll get:

Competitive salary + annual performance-based bonus eligibility
Medical, dental, and vision insurance
401(k) with company match
Paid time off and company holidays

For Mexico-based roles - What you’ll get:

Competitive salary + annual performance bonus eligibility
Christmas Bonus (Aguinaldo): 30 days
Major medical expenses and life insurance
Paid time off and holidays (per local policy)

For all roles:

Professional development and growth opportunities
Opportunity to grow with a mission-driven team shaping the future of clean energy
Equal Opportunity: ON.

Field Service Technician - BESS

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