EV Powertrain Test Technician - Dyno & Validation

Harbinger Motors Inc.; Garden Grove (CA); On-site; USD 41,328 - 55,104; Full time

Job summary

Harbinger Motors Inc. is seeking a Powertrain Technician to perform hands-on testing and validation of electric powertrains for medium-duty EVs. You will handle setup, instrumentation, operation, and teardown of motors, inverters, and drive units in the test lab, bridging design and field performance.

You will use dynamometers, sensors, and data capture to ensure reliability and performance. A strong background in HV safety and practical fabrication completes the profile.

Qualifications

• 3+ years of hands-on experience in automotive, aerospace, or heavy-duty powertrain testing and assembly.
• Proficiency in using standard shop tools, torque wrenches, multimeters, oscilloscopes, and basic fabrication equipment.
• Strong understanding of mechanical systems and high-voltage electrical safety protocols (up to 800V+).
• Excellent troubleshooting, communication, and organizational skills, with a high attention to detail in technical documentation.
• High School Diploma or equivalent practical experience; technical school certificate or Associate’s degree in a related technical field is highly valued.

Responsibilities

• Execute mechanical and electrical setup of powertrain components on dynamometers and test rigs for performance and durability testing.
• Assemble and disassemble a variety of powertrain systems, subsystems, and components for testing including electric motors and drive units.
• Instrument test hardware with sensors such as thermocouples, pressure transducers, accelerometers, and flow meters.
• Fabricate custom test fixtures, cooling loops, and specialized high‑voltage and low‑voltage wiring harnesses.
• Troubleshoot and resolve complex mechanical and electrical issues in real-time to maintain testing uptime.
• Maintain a clean, organized, and strictly compliant high‑voltage safe working environment in the testing lab.
• Collaborate with test and design engineers to document test anomalies, teardown findings, and hardware iterations.

Skills

Powertrain testing

HV safety

Troubleshooting

Documentation

Fabrication/assembly

Education

High School Diploma

Associate degree or technical certificate

Tools

Torque Wrenches

Multimeters

Oscilloscopes

Fabrication equipment

Job description

Harbinger Motors Inc. is seeking a Powertrain Technician to perform hands-on testing and validation of electric powertrains for medium-duty EVs. You will handle setup, instrumentation, operation, and teardown of motors, inverters, and drive units in the test lab, bridging design and field performance.

You will use dynamometers, sensors, and data capture to ensure reliability and performance. A strong background in HV safety and practical fabrication completes the profile.