Intern, Powertrain Manufacturing

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

About this role

Harbinger Motors is hiring a Intern, Powertrain Manufacturing, 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 4-5 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:

We are currently seeking an ambitious engineering student to join our Powertrain Manufacturing team. As an intern, you will support the development and manufacturing of Harbinger’s Electric Drive Unit system, including the rotor and stator. The primary responsibilities for this position will include assisting with the design and testing of production tooling and equipment, developing manufacturing standards and documentation, and supporting cross-functional process improvement efforts. 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:

  • Assist in the development and design of manufacturing standards, processes, equipment, and tooling for the complete Powertrain system including the Rotor, Stator and Electric Drive Unit. Ensure these processes meet safety, quality, and efficiency standards.
  • Support the development and documentation of work instructions and standard operating procedures (SOPs).
  • Collaborate with cross-functional teams to identify and resolve production issues.
  • Assist in the design, testing, and validation of new tools and equipment.
  • Support the continuous improvement initiatives, including lean manufacturing practices.
  • Prepare reports and presentations to communicate findings and recommendations.

What You'll Bring:

  • Enrolled in Bachelor’s degree program or greater in related field
  • Work authorized in the United States OR ability to obtain J-1/F-1 visa
  • Strong analytical and problem-solving skills.
  • Proficiency in Microsoft Office Suite (Excel, PowerPoint, Word).
  • Familiarity with CAD software (e.g., AutoCAD, SolidWorks) is a plus.
  • Excellent communication and teamwork skills.
  • Detail-oriented and able to manage multiple tasks effectively.
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.

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About Harbinger Motors

Harbinger Motors

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

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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.

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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.