- Pay
- $45 — $45 USD per hour
Employer Job Description
From Whizz's posting. “We” and “our” refer to the employer.
- Position: Lithium-Ion Battery Repair Technician
- Location: Jersey City
- Employment Type: Full-time
- Salary: $45 per hour
Are you looking for a hands-on role in a growing industry? Whizz is seeking a Lithium-Ion Battery Repair Technician to join our team and help maintain our fleet of rechargeable batteries. This is a great opportunity for mechanically inclined individuals who enjoy working with electronics and want to develop their technical skills.
Responsibilities:
- Repair at pack and cell level. Replace BMS boards, replace failed cell groups with matched cells, spot-weld nickel strip, repair connectors and wiring, and balance packs.
- Test before release. Run charge/discharge tests after every repair, verify balance and insulation, check the enclosure and seals, and sign off each pack before it goes back into service.
- Keep full traceability. Log every pack by serial number: fault found, parts used, test results, decision.
- Own battery safety. Run the quarantine area for damaged packs, follow safe storage and handling, and keep fire-response equipment and procedures in order.
- Work with the team. Support our mechanics on battery-related bike issues and share parts usage with the supply team.
Requirements
- 3+ years of hands-on repair or rebuilding of lithium-ion battery packs: e-bike, e-scooter, power tool, EV module or energy storage.
- Cell-level skills: spot welding, soldering heavy-gauge wire, cell sorting and matching.
- Solid understanding of BMS: series/parallel configurations, balancing, protection functions, common failure modes.
- Confident use of a multimeter, internal resistance meter, battery analyzer or cycler; able to read wiring diagrams.
- A strict safety mindset: you know how li-ion packs fail, and you know when a pack should not be repaired.
- Accurate, disciplined record-keeping.
- Nice to have
- Experience with UL 2271 / UL 2849 products or a manufacturer-authorized repair program.
- DOT hazmat training for shipping lithium batteries (49 CFR).
- IPC J-STD-001 soldering certification, OSHA 10 or NFPA 70E.
Benefits
- Paid Time Off, including vacation, sick leave, and public holidays
- 401(k) retirement plan
- Health Insurance (MEC Plan) with 100% covered preventive care and $0 deductible
- Collaborative work environment that values clear processes and practical use of automation tools
- Commute support available after the probation period
About this listing
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