Sr. Reliability Test Engineer

Company: Harbinger Motors
Location: Garden Grove, CA
Type: Contract
Posted: Aug 19, 2026
Views: 3

✨ AI Summary

Harbinger Motors, an American commercial electric vehicle (EV) company, is hiring a Sr. Reliability Test Engineer in Garden Grove, CA. This role involves developing reliability test profiles, performing reliability calculations, and leading accelerated lifecycle tests for vehicle systems and hardware. Requires 5+ years of reliability engineering experience, hands-on testing of PCBAs, battery, or thermal systems, and coding skills in Python or Matlab. Salary range is $120,000–$140,000 USD, with benefits including 100% employee-covered health insurance, stock options, and generous PTO.

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
Key Benefits & Perks:
  • 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
California Pay Range
$120,000—$140,000 USD
Equal Opportunity
Harbinger is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law.
Harbinger is committed to ensuring that our hiring process is accessible for persons with disabilities. If you have a disability or limitation, such as those covered by the Americans with Disabilities Act, that requires accommodations to assist you in the search and application process, please email us at [email protected].
Candidate Data Privacy
Harbinger may collect, use and disclose your personal information or personal data (within the meaning of the applicable data protection laws) when you apply for employment and/or participate in our recruitment processes (“Candidate Personal Data”). This data includes contact, demographic, communications, educational, professional, employment, social media/website, network/device, recruiting system usage/interaction, security and preference information. Harbinger may use your Candidate Personal Data for the purposes of (i) tracking interactions with our recruiting system; (ii) carrying out, analyzing and improving our application and recruitment process, including assessing you and your application and conducting employment, background and reference checks; (iii) establishing an employment relationship or entering into an employment contract with you; (iv) complying with our legal, regulatory and corporate governance obligations; (v) recordkeeping; (vi) ensuring network and information security and preventing fraud; and (vii) as otherwise required or permitted by applicable law.
Harbinger may share your Candidate Personal Data with (i) internal personnel who have a need to know such information in order to perform their duties, including individuals on our HR, legal, and finance teams, and the team(s) with the position(s) for which you are applying; (ii) Harbinger affiliates; and (iii) Harbinger’s service providers, including providers of background checks, staffing services, and cloud services.
Harbinger may transfer or store internationally your Candidate Personal Data, including to or in the United States, Canada, the United Kingdom, and the European Union and in the cloud, and this data may be subject to the laws and accessible to the courts, law enforcement and national security authorities of such jurisdictions.
Please note that we are currently not accepting applications from third party application services. Any unsolicited resumes or candidate profiles submitted in response to our job posting shall be considered the property of Harbinger and are not subject to payment of referral or placement fees if any such candidate is later hired by Harbinger unless you have a signed written agreement in place with us which covers the applicable job posting.

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