Real job — pulled straight from Harbinger’s careers page · Verified September 21, 2026 · No reposts.
Job description
Harbinger is hiring a Battery Test Engineer — a full-time, based in Garden Grove, CA role ($120k–$140k). Apply directly on Harbinger's careers page below.
Battery Test Engineer
Location: Garden Grove, CA
Department: 320 Battery
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
The Harbinger battery team is looking to add a battery test engineer to characterize battery pack electrical and thermal performance. This key team member will take ownership of the validation of the Auxiliary Power System (APS) product. They will work closely with design engineers, quality engineers, and manufacturing engineers to ensure design changes are thoroughly tested before being released to production. The test engineer will be responsible for writing procedures, developing test software, purchasing test equipment, and building test stations capable of defining the limits of our battery pack.
Responsibilities:
- Work closely with other battery test engineers, design engineers, BMS engineers, and system engineers to characterize and validate battery and system behavior.
- Develop test software for executing and automating test cases using LabVIEW and/or CANalyzer.
- Participate in the development of BMS software to ensure performance targets are met. Provide data to defend or refute change proposals.
- Specify requirements for Design Validation Plan (DVP) test procedures, including instrumentation, data acquisition, and post processing methods.
- Author test cases to confirm performance with respect to defined requirements.
- Document test results well and support issue resolution.
- Prioritize safety and organization in the lab.
Qualifications:
- Bachelor’s/Master’s degree in Engineering.
- Previous hands-on experience in a lab is required. The candidate should be comfortable working around high-voltage and using hand tools, fabricating wiring projects, and debugging test setups.
- Hands-on experience with instrumentation, including thermocouples, pressure transducers, shunts, and oscilloscopes. Ability to use these sensors to obtain the required data based on component design requirement.
- Working knowledge of batteries, both AC and DC fundamentals, and power conversion.
- Experience with coding languages and applications for data analysis, such as Python or Matlab.
- Good technical writing skills for documenting test reports.
- 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
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Frequently asked questions
What is the salary for Battery Test Engineer at Harbinger?
The estimated salary range for Battery Test Engineer at Harbinger is $120,000 - $140,000 USD per year.
What skills are required for Battery Test Engineer at Harbinger?
The required skills for Battery Test Engineer at Harbinger include: LabVIEW, Python, Matlab.
What is the seniority level for Battery Test Engineer at Harbinger?
Battery Test Engineer at Harbinger is a Mid Level level position.
How do I apply for Battery Test Engineer at Harbinger?
You can view the full description and apply for Battery Test Engineer at Harbinger on EchoJobs: https://echojobs.io/job/harbinger-battery-test-engineer-t4zeq.