Senior Field Service Technician EV Charging Tier III

Zero Impact Builders • Riverside, CA

12d • $75,000 - $85,000 • Onsite

About The Position

ChargeTronix is hiring a Senior (Tier III) Field Service Technician to serve as the top technical field position on its service team. The technician is the escalation point for difficult DC fast-charger faults, commissions new sites, mentors Tier I/II technicians, and is responsible for uptime across a Southern California-based territory. The role works directly on ChargeTronix hardware and feeds structured failure data to engineering. It reports to the Field Service Manager and has no direct reports, while acting as the technical lead for Tier I/II technicians in the territory.

The technician works independently with little supervision and makes on-site safety and repair decisions. Responsibilities include component-level charger repair, root-cause analysis, site commissioning and acceptance testing, preventive maintenance, reliability reporting, managing spares, training technicians, customer communication, and complete field documentation. Work includes energized electrical equipment and is performed in compliance with applicable safety codes and procedures.

This is a full-time, exempt position based in Southern California, with 75% or more travel. Travel includes multi-day regional vehicle trips and periodic out-of-state air travel; the technician is generally home most weekends. The normal schedule is Monday to Friday standard hours, with a paid on-call rotation and occasional weekend or after-hours work when a site is down. The technician plans routes and workdays to serve the most sites per trip. Compensation is $75,000 to $85,000 per year depending on experience, credentials, and platform depth; per diem on travel days and an on-call differential are paid in addition to base pay.

Requirements

• At least 5 years of hands-on electrical or electromechanical field-service experience, including at least 3 years on EV charging equipment and at least 2 years on DC fast chargers rated 50 kW or higher.
• Demonstrated component-level repair experience on DC fast-charger hardware, including power modules, control or communication boards, contactors, and cooling systems, and cable or connector replacement for CCS, NACS, or CHAdeMO.
• Experience with 480 V three-phase systems and high-voltage DC.
• Ability to read one-line diagrams, wiring diagrams, and schematics.
• Track record of training or leading other technicians, or writing procedures others follow.
• One of the following credentials: California General Electrician Certification; a journeyman or master electrician license from another state; EVITP certification; or at least 5 years of documented DCFC field service with component-level repair and California Electrician Trainee registration obtained within 90 days of hire.
• Current NFPA 70E qualified-person training, or ability to complete it within 60 days of hire; training is company-provided.
• OSHA 10 certification; OSHA 30 is preferred.
• Current CPR/First Aid certification, including low-voltage rescue, or ability to complete it within 60 days of hire; training is company-provided.
• Valid driver's license with a clean driving record, and ability to pass a background check and DOT-style medical clearance for a company vehicle.
• Working knowledge of NEC, particularly Article 625, NFPA 70E, and OSHA 29 CFR 1910 Subpart S.
• Proficiency with multimeters, clamp meters, insulation-resistance testers, and torque tools; ability to use an oscilloscope or data logger when needed.
• Ability to read charger logs and communication traces, including PLC and CAN, and identify where a charge session failed.
• Networking basics for connected chargers, including Ethernet, cellular modems, Wi-Fi, RS-485, and backend connectivity troubleshooting.
• Comfort with ticketing and CRM tools such as Salesforce, Zendesk, or similar, Microsoft Office or Google Workspace, and writing clear field reports.
• Ability to work independently and decisively on site while recognizing when to request help.
• Customer-first approach and ability to calmly explain technical issues to site hosts and drivers.
• Reliability and ability to plan work under heavy travel demands.
• Ability to meet the physical requirements of the role, including frequent lifting and moving of 50 lb and working around energized equipment with appropriate PPE.

Nice To Haves

• Hands-on service experience on two or more DCFC platforms, such as ABB, Tritium, BTC Power, SK Signet, Kempower, Alpitronic, Autel, ChargePoint, Sinexcel, Tellus, Longhorn, Blink, or Tesla.
• Working knowledge of OCPP 1.6J or 2.0.1, ISO 15118, and DIN 70121, including how failed handshakes appear in logs.
• OEM manufacturer service certifications on any of the listed platforms.
• Experience commissioning solar, battery storage, UPS, or other power-electronics equipment.
• Aerial lift or forklift certification.
• Bilingual English/Spanish.

Responsibilities

• Resolve Tier III DC fast-charger faults involving power electronics, control and communication boards, contactors, cooling systems, cable and connector assemblies, and vehicle interoperability.
• Perform component-level repairs where appropriate, including work on power modules, SECC/PD/MCU boards, power supplies, contactors, IGBTs, and sensors.
• Read and interpret PLC, CAN, and OCPP logs to identify root causes, and capture logs, photos, and meter readings for engineering and warranty.
• Provide remote phone and video support to junior technicians working at live sites.
• Commission new installations by verifying incoming 480 V service, grounding and bonding, torque values, firmware, network and backend registration, and payment or authorization.
• Conduct acceptance charge tests across vehicle platforms and CCS1, NACS, and CHAdeMO connector types, and sign off that sites are ready for service.
• Maintain and update the test-vehicle fleet and conduct interoperability testing as vehicles and NACS adapters enter the market.
• Execute field upgrade and retrofit campaigns, including NACS cable and adapter retrofits, firmware rollouts, and engineering change orders.
• Own and report weekly on territory uptime, mean time to repair, and first-time-fix rate.
• Perform scheduled preventive maintenance to the ChargeTronix checklist and recommend checklist changes.
• Identify repeat-fault patterns, drive root-cause investigations, and write field service bulletins and work instructions.
• Manage truck stock and territory spares, and tag and return failed parts with complete failure data for RMA and warranty.
• Train and ride along with Tier I/II technicians, and sign off their readiness to work independently.
• Write and maintain SOPs, troubleshooting guides, and training materials.
• Serve as the primary on-site contact for customers, site hosts, electrical contractors, utilities, and inspectors, explaining technical issues to non-technical people.
• Perform job hazard analysis, lockout/tagout, arc-flash risk assessment, and PPE selection for energized work; exercise stop-work authority and model safe practices.
• Perform electrical work according to NEC, including Article 625, local code, and manufacturer specifications.
• Complete an accurate field service report and close each visit's ticket the same day.
• Proactively communicate issues, delays, risks, and parts needs to the service manager, with a proposed solution.
• Keep tools, test equipment, vehicle, and PPE calibrated, organized, and inspection-ready.
• Perform other duties as assigned.

Benefits

• Medical, dental, and vision insurance.
• 401(k).
• Paid time off and holidays.
• Company vehicle, phone, laptop, tools, and PPE.
• Paid training and certification, including NFPA 70E, OSHA 30, EVITP, and OEM courses.
• Per diem on travel days.
• Paid on-call differential.
• Opportunity for advancement.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed