Job Description

ON.energyis setting the standard for large load interconnection. ON’s patented AI UPS™ is a medium-voltage UPS that serves as a firewall, protecting the data center from the grid, and the grid from the data center. With multiple gigawatts currently under construction, we are enabling grid-safe data centers. 

Travel Requirement: >80% site based

Position Type: Full-Time, hourly with OT and per diem

Location: Field-Based in United States (current site in Amarillo, TX)

Overview

The Site Readiness Technician III is a master technician and field supervisor responsible for leading inspection crews and driving Site Readiness execution on ON.energy’s mission-critical, medium-voltage double-conversion UPS systems built on utility-scale BESS equipment (batteries, transformers, PCS, and controls). The Technician III performs advanced receiving and mechanical completion inspections, leads non-conformance disposition, supports pre-energization readiness, and mentors junior technicians while maintaining the highest standards of safety and quality.

This is a senior, hands-on, high-travel field role for a technician who can operate autonomously, supervise crews, and interface directly with the Site Readiness Manager, commissioning engineers, EPC partners, and OEM representatives.

Key Responsibilities

Safety Leadership

• Foster and maintain a culture of safety for all team members, overseeing JHA and LOTO program compliance and maintaining zero recordable injuries.

Field Supervision

• Act as field supervisor for teams of 2–12 Site Readiness Technicians.

• Work autonomously to further project readiness goals and maintain inspection quality and tracking standards with junior members.

• Provide hands-on training to junior and intermediate technicians on inspection procedures, documentation, and acceptance criteria.

Inspection, Verification & Non-Conformance

• Perform advanced receiving inspections and mechanical completion verification on BESS containers, battery racks/modules, inverters, transformers, switchgear, telecom cabinets, and auxiliary systems.

• Verify torque, terminations, grounding, cable routing, labeling, conduit, and enclosure integrity against approved submittals, drawings, OEM requirements, and the project Quality Plan.

• Lead initial disposition of non-conformances; initiate and track NCRs and punch list items through closure, escalating to the Site Readiness Manager and engineering when issues cannot be resolved in the field.

• Support pre-energization readiness reviews and quality walkdowns with commissioning.

OEM/EPC Interface & Documentation

• Interface with OEM field representatives and EPC quality personnel; relay findings to the Site Readiness Manager and engineering.

• Maintain excellent documentation habits — inspection reports, photographic evidence, redlines, and field discrepancy tracking — in the project platform (Overmap, CxAlloy, or equivalent).

Tools & Diagnostics

• Proficient in the safe use of standard hand tools and calibrated torque tools for verification of assembly and installation.

• Skilled in operating inspection and diagnostic equipment including digital multimeters, clamp meters, insulation resistance testers, and other measurement devices commonly used in battery energy storage systems.

Required Qualifications

• 5+ years hands-on experience in field inspection, construction QA/QC, or electrical/mechanical commissioning on power systems.

• Working knowledge of NEC, NFPA 70E, IEEE, UL 9540/9540A, utility standards, and OEM installation requirements.

• Associate degree or vocational/military training in Electrical, Electronics, or a related technical field.

• Strong judgment on dispositioning defects and knowing when to escalate to engineering.

• Willing and able to travel up to ~80% to project sites nationwide.

Preferred Qualifications

• Experience with medium-voltage equipment and pre-energization verification.

• Safety certifications (OSHA 30, NFPA 70E, First Aid, CPR, AED).

• Prior BESS or hyperscale data center inspection or commissioning experience.

• Certifications such as NETA, AWS CWI, or ISO 9001 auditor.

Soft Skills

• Strong leadership presence and ability to supervise crews.

• Excellent inspection instincts and attention to detail — a “zero-defect” mindset.

• Clear communicator with the Site Readiness Manager, engineers, OEMs, EPC partners, and junior technicians.

• Bias toward safety, quality, and thorough documentation.

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.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
• Benefits vary by role and location and are subject to change.

Agency Notice: ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.

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