EPG Field Technician

HiFyve•Rancho Cucamonga, CA

About The Position

We are seeking an experienced Power Generation Field Service Technician to troubleshoot, diagnose, service, repair, and maintain commercial and industrial generator systems. This hands-on field service position requires strong diesel and/or natural gas generator experience, electrical troubleshooting abilities, and the capacity to independently diagnose mechanical and electrical equipment failures. The technician will support customer-owned generators and rental power equipment by performing preventive maintenance, emergency repairs, generator startup, commissioning, and load-bank testing. The role involves servicing diesel, natural gas, and bi-fuel generators, along with associated controls, automatic transfer switches, electrical distribution equipment, and temporary power systems. The technician will work at customer locations, respond to emergency service calls, document service and test results, and communicate repair recommendations to customers and service management. The position is full-time, based in California, and includes emergency/on-call availability. Compensation is $30–$40 per hour or more, depending on experience. The employer is an established industrial power generation company with more than 35 years of experience providing generator sales, rentals, maintenance, repairs, installations, and emergency power solutions throughout California and the western United States. Its work supports commercial and industrial customers with standby, prime, temporary, and emergency power systems, using a large rental fleet and multi-OEM service capabilities.

Requirements

At least 3 years of hands-on experience servicing, troubleshooting, and repairing diesel and/or natural gas generators.
Experience with commercial or industrial generator systems, rather than exclusively residential standby generators.
Strong electrical and mechanical troubleshooting skills.
Ability to diagnose generator control, starting, charging, fuel, cooling, and electrical problems.
Experience performing preventive and corrective maintenance on generator engines and associated equipment.
Ability to read electrical schematics, wiring diagrams, and technical service manuals.
Familiarity with electrical testing equipment, including digital multimeters.
Experience with field service, customer-site repairs, and independent troubleshooting.
Valid driver's license and ability to travel to customer locations.
Willingness to participate in emergency/on-call service coverage.

Nice To Haves

Experience with multiple generator OEMs, including CAT, Cummins, Kohler, Generac, MTU, Detroit Diesel, Perkins, or John Deere.
Hands-on experience with larger industrial generators, particularly 100 kW–2 MW or greater.
Experience performing generator load-bank testing.
Knowledge of automatic transfer switches (ATS), voltage regulators, generator controls, and power distribution.
Experience with generator commissioning, startup, and temporary power installations.
Familiarity with generator diagnostic software and manufacturer-specific troubleshooting tools.
Experience with natural gas engines, bi-fuel systems, or industrial engine overhauls.
Experience supporting industrial facilities, critical-power applications, or emergency backup power systems.
Factory or manufacturer-specific generator service training.
Experience with California generator emissions requirements or CARB/AQMD compliance documentation.

Responsibilities

Diagnose, troubleshoot, repair, and maintain commercial and industrial diesel, natural gas, and bi-fuel generators.
Perform scheduled preventive maintenance, including oil and filter changes, fuel-system inspections, coolant testing, battery testing, and mechanical inspections.
Troubleshoot generator electrical systems, controls, voltage regulation, starting systems, and related components.
Diagnose engine failures involving fuel delivery, cooling systems, lubrication, sensors, and mechanical components.
Perform generator startup, operational testing, commissioning, and verification following installation or repair.
Conduct load-bank testing, monitor generator performance under load, and document test results.
Inspect, test, and troubleshoot automatic transfer switches (ATS) and associated electrical distribution equipment.
Support installation, delivery, setup, and commissioning of industrial rental generators and temporary power systems.
Assist with generator electrical connections, power distribution equipment, cables, and related accessories within authorized qualifications.
Respond to emergency service calls to diagnose equipment failures and restore generator operation.
Perform major and minor generator repairs, including engine repair and overhaul work when qualified.
Read and interpret electrical schematics, wiring diagrams, technical manuals, and manufacturer troubleshooting procedures.
Identify replacement parts, document service findings, and communicate repair recommendations.
Complete service reports, maintenance records, inspection documentation, and customer-facing technical reports.
Follow applicable electrical safety procedures, manufacturer requirements, and environmental compliance practices.
Communicate professionally with customers, service management, and other technicians.