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Test Systems Engineer, Powertrain
Garden Grove, CA
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.
Job Overview
Based out of our Garden Grove headquarters, the Senior Powertrain Test Engineer is responsible for execution of system level Powertrain testing as part of Harbinger’s development and validation process. They will collaborate closely with fellow test engineers to execute comprehensive system-level testing, drive innovation in our test facility capabilities, and partner with stakeholders to develop robust testing methodologies. The role will have a key focus on the electrical, mechanical, and software integration of Powertrain systems and test rigs, building out robust instrumentation and data acquisition systems, and development of automated test software focusing on repeatability, efficiency, and safety.
What You’ll Do:
- Set up, configure, and maintain test rigs and laboratory equipment to support development and validation testing of electric vehicle powertrain systems and components.
- Integrate mechanical assemblies, electrical hardware, sensors, instrumentation, and control systems to enable reliable and repeatable testing.
- Configure and troubleshoot data acquisition (DAQ) systems, measurement sensors, and test instrumentation to capture high-quality test data.
- Support the execution of component- and system-level tests, including test setup, instrumentation, data collection, and post-test analysis.
- Analyze test data to identify trends, characterize system performance, investigate anomalies, and support root-cause analysis.
- Troubleshoot electro-mechanical systems and test setups, identifying and resolving hardware, instrumentation, and integration issues.
- Collaborate with test, mechanical, electrical, and controls engineers to improve test procedures, instrumentation, and overall laboratory capabilities.
- Document test configurations, wiring, instrumentation layouts, procedures, and results to support repeatability and knowledge sharing.
- Contribute to the continuous improvement of test systems, laboratory processes, and validation methodologies, with an emphasis on safety, efficiency, and data integrity.
Who You Are:
- Bachelor’s degree in Mechanical Engineering, Electrical Engineering, Mechatronics Engineering, or a related technical discipline, or equivalent practical engineering experience.
- Approximately 3–5 years of relevant experience in test engineering, mechatronics, electro-mechanical integration, instrumentation, or hardware development.
- Hands-on experience setting up, integrating, and troubleshooting mechanical and electrical hardware in a laboratory, test facility, or product development environment.
- Familiarity with data acquisition systems, sensors, instrumentation, signal measurement, and test equipment.
- Experience collecting, processing, and analyzing test data using tools such as Python, MATLAB, LabVIEW, or similar software.
- Ability to read and interpret mechanical drawings, electrical schematics, wiring diagrams, and equipment documentation.
- Strong troubleshooting skills and the ability to work methodically through hardware and system integration challenges.
- Comfortable working directly with physical hardware, using electrical measurement tools, and supporting the setup and execution of engineering tests.
- Strong organizational and documentation skills, with attention to test repeatability, data quality, and laboratory safety.
- A collaborative, hands-on mindset and the ability to work across mechanical, electrical, and software disciplines
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 info@harbingermotors.com.
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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