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Supplier Quality Engineer, High Voltage Systems

Harbinger Motors

Job Location:

Garden Grove, CA - USA

Yearly Salary: USD 120000 - 180000

Posted: 15 October 2026 (9 days ago)

Application Deadline: 12 January 2027

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.

Job Overview:

We are looking for a Supplier Quality Engineer (High Voltage Systems) with broad responsibilities working cross-functionally with Engineering Suppliers Purchasing and Manufacturing teams to define and implement supplier quality engineering processes and drive continuous improvement activities throughout the organization. The Quality Engineer will play a key role in implementing and maintaining Harbingers quality management system (QMS) and will establish and improve the quality of our operational processes and outputs. Responsibilities include defining quality standards for high-voltage components inspecting materials equipment processes and products developing quality control systems supplier selection PPAP leading APQP and determining corrective actions. A successful Quality Engineer should have excellent troubleshooting skills and be able to ensure that processes and high-voltage systems consistently meet established safety and quality standards.

What Youll Do:

Develop and implement supplier quality standards supplier quality portal and supporting supplier quality processes tailored to high-voltage components and electromechanical assemblies.
Inspect and test materials equipment processes and high-voltage products (e.g. battery modules/packs inverters power distribution units wiring harnesses and connectors) to ensure safety and quality specifications are met.
Conduct supplier assessments and evaluations to ensure suppliers meet high-voltage manufacturing and electrical safety standards.
Plan and conduct supplier audits to assess their quality systems production control processes insulation testing and technical capabilities.
Participate in the supplier selection process by providing quality-related and high-voltage compliance input.
Lead weekly calls with suppliers to ensure high-voltage components and sub-assemblies are on track to meet quality safety and timing requirements for various build stages of the production line.
Monitor and report on supplier performance metrics such as defect rates electrical test yields delivery times and compliance with specifications.
Identify areas for improvement and work with suppliers to implement root cause analysis and corrective actions (8D 5-Why).
Investigate and resolve quality issues related to supplier high-voltage components insulation integrity and electrical interlocks.
Collaborate with suppliers to determine root causes of defects and implement robust corrective and preventive actions (CAPA).
Lead continuous improvement initiatives to enhance supplier quality safety compliance and performance.
Work with suppliers to implement lean manufacturing practices automated end-of-line testing controls and other quality improvement methodologies.
Maintain accurate and up-to-date records of supplier quality performance high-voltage test data audits and corrective actions.
Ensure that suppliers comply with all relevant industry standards high-voltage safety regulations (e.g. ISO 6469 UL/IEC standards) and company policies.
Stay updated on changes in industry standards and regulations affecting high-voltage safety automotive electrification and supplier quality.
Lead supplier audits APQP PPAP Gauge R&R electrical testing validation and safe launch activities.
Participate in Design for Manufacturability/Assembly (DFM/DFA) and high-voltage risk mitigation reviews with design engineering and manufacturing teams.
Lead MRB (Material Review Board) meetings and act as a quality representative for the engineering change control board regarding high-voltage assemblies and components.

Who You Are:

Bachelors degree in Electrical Engineering Mechatronics Mechanical Engineering Manufacturing Engineering or a similar technical field required.
3 7 years of experience in manufacturing quality or supplier quality engineering in the automotive EV/e-mobility aerospace or power electronics industries.
Hands-on experience or familiarity with high-voltage systems electric vehicle architecture high-voltage safety (EHS/NFPA 70E) insulation resistance testing (hipot) battery systems inverters or HV harness assemblies.
ASQ Certifications such as Certified Quality Engineer (CQE) Certified Quality Auditor (CQA) Certified Quality Manager (CQM) Lean Six Sigma Green Belt or higher preferred.
Strong knowledge of ISO 9001:2018 or IATF 16949 standards strongly desired.
Understanding of core quality tools such as Quality Management Systems Supplier/Internal Audits APQP SPC PPAP FMEA (DFMEA/PFMEA) and MSA.
Strong analytical and problem-solving skills with excellent verbal written and interpersonal skills.
Excellent project management skills with the ability to manage multiple supplier projects simultaneously.
Strong understanding of electromechanical components printed circuit board assemblies (PCBA) high-voltage connectors/cabling bussing thermal management systems and high-voltage enclosure manufacturing processes (castings plastics sealing).
Ability to travel (domestic and international) up to 30% to 50%.
Proven experience in a quality engineering role within a high-voltage EV or automotive production environment.
Strong knowledge of quality assurance methodologies electrical testing/validation tools and root cause analysis techniques.
Experience with supplier quality management including auditing suppliers of complex electrical or electromechanical components.
Proficiency in quality management systems (QMS) and relevant software applications.

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

$120000 - $180000 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:

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