Intern, Test Engineering

Garden Grove, CA EV Internship Posted Oct 9, 2026
Apply on Harbinger Motors (opens in a new tab) Sourced via job-boards.greenhouse.io · Posted 2026-10-09

About this role

Harbinger Motors is hiring a Intern, Test Engineering, internship, on-site in Garden Grove, CA, in the EV sector.

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 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:

We are currently seeking an ambitious engineering student to join our Component Test Engineering team. As an intern, you will have various opportunities to contribute to developing and validating vehicle components. You will work closely with other test engineers, product design release engineers, and manufacturing engineers to ensure that in-house and supplier-sourced components perform reliably to design specifications. Additionally, this test engineering intern will be closely involved in the design and development of internal testing infrastructure to serve the needs of the company.

What You'll Do:

  • Assist in testing automotive components for performance, durability, and reliability under various conditions.
  • Set up, operate, and monitor test equipment to conduct tests on mechanical, electrical, and thermal components.
  • Collect and analyze test data to evaluate the functionality and quality of components.
  • Support the development of test procedures by preparing test plans and ensuring proper test execution.
  • Document test results, observations, and any deviations from expected performance, providing detailed reports for senior engineers.
  • Work closely with cross-functional teams (design, manufacturing, and quality) to communicate test outcomes and suggest improvements.
  • Maintain test equipment and ensure proper calibration and functionality.
  • Adhere to safety standards and protocols when operating in the test lab environment.
  • Participate in team meetings to discuss test results and project updates.
  • Assist in troubleshooting issues and/or root-cause analysis of test failures encountered during testing and provide potential solutions or workarounds.

What You'll Bring:

  • Enrolled in Bachelor’s degree program or greater in electrical, mechanical, mechatronics, or related engineering field
  • Familiarity with developing schematics, testing & data acquisition hardware, and creating test scripts for various electrical, mechanical/structural, and thermal tests
  • Understanding of 2D drawing layout and GD&T
  • Motivation to learn on the job and take ownership of a project; with guidance
  • Work authorized in the United States OR ability to obtain necessary work visa
  • Preferred Skills:
    • Ability to create 3D CAD models and 2D drawings using CATIA 3DExperience
    • Understanding of 2D drawing layout and GD&T
    • Understanding of High Voltage (HV) architecture of electric powertrains
    • Familiarity with Python and LabVIEW
    • Prior experience in automotive projects
    • Understanding of basic manufacturing and fabrication processes
Equal Opportunity 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.

Description from Harbinger Motors's official posting. Always confirm details on the company careers page.

Apply on Harbinger Motors Applications go directly to Harbinger Motors. Curated by Larry Sherwood Jr.

About Harbinger Motors

Harbinger Motors

Medium-duty electric commercial vehicle manufacturer. Garden Grove, CA.

Ready to apply?
Apply on Harbinger Motors (opens in a new tab) You'll be redirected to job-boards.greenhouse.io to complete your application.

Not the one? Get new EV roles by email, weekday mornings, only when something new lands.

Larry Sherwood Jr.

About Larry Sherwood Jr.

Talent Acquisition Leader specializing in mobility, EV, and frontier tech. 1,000+ hires across roles ranging from production technicians to VPs, including 48 hires for the AFEELA U.S. launch at Sony Honda Mobility (98% offer acceptance, $1.5M+ agency savings). SHRM-CP certified. Build recruiting functions from scratch, no agencies.

SONY HONDA MOBILITYFISKERSHRM-CP1,000+ HIRES

Currently open to senior TA leadership roles in the United States. larrysherwoodjr.com · Resume (PDF)

Read Larry's guides →
Job no longer open? Let me know

Curated by Larry Sherwood Jr. on the free Mobility Jobs board. Pulled nightly from company applicant tracking systems. Apply directly on the source link above to be considered.