Intern, Power Electronics Engineering

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.

• 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: 11–14 weeks (Sep 8 to Dec 11 or Sep 21 to Dec
  4)
• 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.

We seek an ambitious engineering student to join our team to assist with electrical engineering design and test projects on electric vehicle prototypes and associated test apparatus. As part of a small (~6 person) power electronics team, this role offers a significant opportunity to acquire hands‑on automotive engineering experience as well as high level knowledge of electric vehicle systems, engineering and product design processes, and vehicle testing.

The role also offers the opportunity to build valuable experience at a fast‑paced, high‑growth startup during a critical early product development stage.

• Sizing and design of power electronics components such as inverter, on‑board battery chargers, DC‑DC converter for commercial trucks.
• Hands‑on testing, bring‑up and validation of power converters / motor controllers.
• Mixed‑signal PCB design based on IPC and IEC standards.
• Worst‑case circuit analysis on critical areas of the overall system.
• Circuit simulation using LTspice and PLECS.
• Collaborate with mechanical designers to integrate electrical devices in product designs.
• Write technical reports and present at design reviews.

• Thorough understanding of analog electronics circuits, digital electronic circuits, power supply design, magnetics design and control theory.
• Prior coursework and experience with Power Electronics and high voltage systems.
• Working knowledge of High voltage systems in automotive.
• Experience in hands‑on electrical fabrication and/or troubleshooting.
• Experience in basic PCB layout.
• Experience in setup and use of data acquisition systems.
• Work authorized in the United States OR ability to obtain J‑1/F‑1 visa.
• Currently registered in a Bachelor’s, Master’s or PhD program focused on Power electronics.

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 .