Harbinger

Intern, Battery Test

Posted 13 Days Ago

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Garden Grove, CA, USA

Hybrid

25-35 Hourly

Internship

Automotive • Energy

The Role

Battery Test Intern supporting high-voltage battery characterization and validation. Responsibilities include developing and executing test plans, designing fixtures, creating test methods, conducting cell-, module-, and pack-level tests, logging and analyzing data, preparing reports, and debugging low-voltage test setups. The role is full-time and primarily onsite in Garden Grove, California, with opportunities to support design engineering and testing at an electric vehicle startup.

Summary Generated by Built In

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:

Location: Immerse yourself in our innovative culture! This role requires a commitment of 4-5 days in-office per week at our facility in Garden Grove, CA as well as full-time hours (40 hours a week).
Duration: 8 weeks for quarter or 15 weeks for semester (January 11 to April 30 OR January 11 to March 12)
Relocation Support: A $1,000 relocation stipend is available for interns currently residing more than 50 miles from Garden Grove, CA.
Compensation: Earn an hourly rate of $25-35 USD per hour.

Job Summary:

Harbinger Motors is a VC funded early-stage electric vehicle startup based in Garden Grove, California focused on the commercial space. We are currently seeking an ambitious engineering student to join our HV battery testing team. As an intern, you will have various opportunities to contribute to the characterization and validation of Harbinger’s industry-leading battery technology. The primary responsibilities for this position will be to set up and conduct tests on the HV battery and its components. The role also offers the opportunity to build valuable experience at a fast paced, high growth startup during a critical early product development stage.

What You'll Do:

Support design engineering and testing functions
Develop and execute test plans, including fixture design, test method development, data logging, and reporting
Assist test engineers with a variety of cell-level, module-level, and pack-level tests
Write test plans
Support data analysis

What You'll Bring:

Enrolled in Bachelor’s or Master’s degree program in Electrical, Chemical, or Mechanical Engineering
Previous internship experience required
Comfortable using hand tools, fabricating simple wiring projects, and debugging low-voltage test setups
Ability to write Python scripts to facilitate data analysis
Prior experience with instrumentation and data acquisition sensors preferred
Prior experience in automotive projects is preferred, but not required
- Collegiate teams such as Formula SAE, Baja SAE, EcoCAR, Supermileage, etc.
- Hands-on experience working on vehicles or batteries
Work authorized in the United States OR ability to obtain J-1/F-1 visa

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.

Skills Required

Currently enrolled in a Bachelor's or Master's degree program in Electrical, Chemical, or Mechanical Engineering
Previous internship experience
Comfort using hand tools, fabricating simple wiring projects, and debugging low-voltage test setups
Ability to write Python scripts for data analysis
Work authorization in the United States or ability to obtain a J-1 or F-1 visa
Prior experience with instrumentation and data acquisition sensors
Prior experience in automotive projects, including Formula SAE, Baja SAE, EcoCAR, Supermileage, vehicle, or battery projects

Harbinger Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Harbinger and has not been reviewed or approved by Harbinger.

Fair & Transparent Compensation — Pay is considered competitive for its market and stage, and feedback suggests ranges are posted and compensation is communicated clearly in listings.
Healthcare Strength — Health coverage is highlighted as 100% employer‑paid for employees across postings, indicating strong medical, dental, and vision support.
Leave & Time Off Breadth — Time off is described as generous, with parental leave and an annual vacation bonus appearing alongside core PTO.

Learn more about Harbinger's Compensation & Benefits →

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The Company

HQ: Garden Grove, CA

407 Employees

Year Founded: 2021

What We Do

Harbinger is a 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 support the growing demand for medium-duty EVs. Leveraging a foundation of proprietary, in-house developed vehicle technologies designed specifically for commercial vehicles, Harbinger is bringing a first-of-its-kind EV platform to market, priced for zero acquisition premium. Harbinger: familiar form, revolutionary foundation.