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Staff Mechanical Engineer, Powertrain

Harbinger Motors

Job Location:

Garden Grove, CA - USA

Yearly Salary: USD 170000 - 200000

Posted: 2 October 2026 (Yesterday)

Application Deadline: 30 December 2026

Vacancies: 1 Vacancy

Job Summary

About Harbinger

Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbingers 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.

What Youll Do:

Lead the design and development of key systems within the powertrain covering Electric and Internal Combustion.
Break down complex technical challenges into smaller components and support junior engineers in delivering solutions.
Set standards and create best practices for others to follow in technical tasks (FEA design guidelines hand calculations etc).
Support the in-service products leading failure investigations and cost-down exercises.
Work closely with manufacturing and quality to ensure the consistent output of our powertrain products while supporting production ramp ups supplier changes etc.
Deliver high quality independent work.
Take in process and communicate complex technical information to a wide audience.

Who You Are:

Bachelor of Science in Mechanical Engineering (or similar) with a minimum of 10 years of relevant industry experience with emphasis on mechanical design.
A design engineer who has owned multiple powertrain systems from concept through full life in an automotive environment.
Demonstrated experience in working with Electric Drive Units (EDUs) and Internal Combustion (IC) engines
Deep understanding of powertrain manufacturing processes.
Proficiency in 3D CAD systems (CATIA preferred) FEA (stress analysis thermal simulations etc) and the design of rotating components.
A clear communicator who has a proven record of delivering complex projects with multi-disciplinary teams under tight deadline pressure.

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

$170000 - $200000 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

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) Harbingers 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.

Required Experience:

Staff IC

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