Lithium-Ion Battery Repair Technician (E-Bike Fleet)

Whizz • Jersey City, NJ

3d

About The Position

Whizz is seeking a Lithium-Ion Battery Repair Technician to maintain its fleet of rechargeable batteries. This hands-on role involves repairing lithium-ion battery packs at the pack and cell level, testing and documenting repairs, and maintaining safe handling practices. The technician will also support mechanics with battery-related bike issues and coordinate parts usage with the supply team. The position is based in Jersey City and is full-time, with pay of $45 per hour.

Requirements

• At least 3 years of hands-on lithium-ion battery pack repair or rebuilding experience, such as with e-bikes, e-scooters, power tools, EV modules, or energy storage.
• Cell-level repair skills, including spot welding, soldering heavy-gauge wire, and cell sorting and matching.
• Solid understanding of battery management systems (BMS), including series/parallel configurations, balancing, protection functions, and common failure modes.
• Confident use of a multimeter, internal resistance meter, battery analyzer, or cycler, and ability to read wiring diagrams.
• Strict safety mindset, including knowledge of lithium-ion pack failure risks and when a pack should not be repaired.
• Accurate and disciplined record-keeping.

Nice To Haves

• Experience with UL 2271 or UL 2849 products, or a manufacturer-authorized repair program.
• DOT hazmat training for shipping lithium batteries under 49 CFR.
• IPC J-STD-001 soldering certification, OSHA 10, or NFPA 70E.

Responsibilities

• Repair battery packs and cells, including replacing BMS boards and failed cell groups with matched cells, spot-welding nickel strip, repairing connectors and wiring, and balancing packs.
• Run charge/discharge tests after repairs; verify balance and insulation; check enclosures and seals; and sign off packs before returning them to service.
• Log each pack by serial number, including the fault found, parts used, test results, and repair decision.
• Manage the quarantine area for damaged packs, follow safe storage and handling practices, and maintain fire-response equipment and procedures.
• Support mechanics with battery-related bike issues and share parts usage information with the supply team.

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 a $0 deductible.
• Commute support available after the probation period.
• Collaborative work environment that values clear processes and practical use of automation tools.

What This Job Offers

• Job Type: Full-time
• Education Level: No Education Listed