EV Powertrain Test Technician: High-Voltage Dyno

Harbinger Motors Inc.; Garden Grove (CA); On-site; USD 48,000 - 62,000; Full time

Job summary

Harbinger Motors Inc. is seeking a Powertrain Technician to lead hands-on testing and validation of electric powertrains for medium-duty EVs. You will set up, instrument, operate, and teardown test articles including motors, inverters, and drive units.

Responsibilities include assembling/disassembling powertrain systems, sensor instrumentation, and fabricating test fixtures. A strong HV safety mindset and meticulous documentation are essential.

Qualifications

• 3+ years hands-on experience in automotive, aerospace, or heavy-duty powertrain testing and assembly.
• Proficient with shop tools, torque wrenches, multi-meters, oscilloscopes, and basic fabrication equipment.
• Strong understanding of mechanical systems and high-voltage electrical safety (up to 800V+).
• Excellent troubleshooting, communication, and documentation skills.

Responsibilities

• Execute mechanical and electrical setup of powertrain components on dynamometers and test rigs for performance and durability testing.
• Assemble and disassemble powertrain systems, subsystems, and components for testing.
• Instrument test hardware with sensors (thermocouples, pressure transducers, accelerometers, flow meters).
• Fabricate custom test fixtures, cooling loops, and wiring harnesses for high and low voltage testing.
• Troubleshoot and resolve hardware issues to maintain testing uptime.
• Maintain a clean, strictly compliant high-voltage lab environment.

Skills

Powertrain testing

Tool proficiency

HV safety 800V+

Troubleshooting

Documentation

Education

High School Diploma or equivalent

Technical certificate / Associate degree (preferred)

Tools

Jira

Job description

Harbinger Motors Inc. is seeking a Powertrain Technician to lead hands-on testing and validation of electric powertrains for medium-duty EVs. You will set up, instrument, operate, and teardown test articles including motors, inverters, and drive units.

Responsibilities include assembling/disassembling powertrain systems, sensor instrumentation, and fabricating test fixtures. A strong HV safety mindset and meticulous documentation are essential.