About the role
Sr. Reliability Test Engineer at Harbinger Motors Inc. in Garden Grove, CA. Hybrid. Posted January 13, 2026.
About Harbinger
Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger’s best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to bring a first-of-its-kind EV platform to support the growing demand for medium-duty EVs and Hybrids. Harbinger: Familiar Form, Revolutionary Foundation.
Sr. Reliability Test Engineer
The Test Engineering team at Harbinger Motors is involved in the validation and reliability testing at the vehicle, sub-system, and component levels. The team is looking for someone who has 5+ years of experience with reliability metrics and calculations as well as hands-on reliability testing. This key team member will have ownership of developing reliability test profiles for various vehicle systems and hardware.
Responsibilities:
- Work closely with the product design engineers to ensure that products can meet desired life targets
- Perform reliability calculations and develop detailed test-plans for accelerated lifecycle tests
- Lead the execution of reliability tests
- Lead root cause analysis of test failures and/or field failures
- Support cross-functional DFMEA sessions
- Travel to offsite test locations as needed (<30%)
- Work with cross-functional teams to develop in-house test infrastructure required to test and validate various systems and components
- Train personnel on the required processes and operations of complex test systems
- Ensure that all tests are conducted in compliance with all safety protocols
- Document the results in a report and present it to stakeholders
- Participate in discussions with suppliers, supplier quality team, and design team to improve product reliability
Qualifications:
- Bachelor’s/Master’s degree in either Engineering or Material Science with 5+ years of industry experience in the field of reliability
- Experience with performing reliability calculations and developing test profiles
- Experience with hands-on testing of either PCBAs, battery, or thermal systems
- Experience with coding languages and applications for data analysis, such as Python or Matlab
- Good technical writing skills for documenting test reports
Preferred Qualifications:
- Familiarity with EV powertrain architecture and associated HV devices, such as DCDC converters, on-board chargers, junction boxes, inverters, battery, thermal systems, etc.
- Experience with data analytics and visualization relevant to product reliability
- Experience with HV testing
- Comprehensive Health, Dental & Vision (HDV) – 100% employee covered
- Early-stage Stock Options
- Robust Retirement Savings (401k, HSA, FSA)
- Generous Paid Time Off (PTO) & Parental Leave
- Annual Vacation Bonus
- Wellness & Fertility Benefits
- Cell Phone Stipend
- Complimentary Meals & Stocked Kitchens
Prefer to apply yourself? Apply on Harbinger Motors Inc.’s site
Quick answers
Where is this job based?
Garden Grove, CA. The role is hybrid.
How much experience do you need?
The posting asks for 5+ years.
How do you apply?
Apply on Harbinger Motors Inc.’s site using the link on this page. With a free Jobmagic account you can see how well you fit first.
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