Quality Control Engineer Lithium-ion Battery Cell Grading and IQC

Role & responsibilities

• Carry out incoming inspection (IQC) of lithium cells, BMS, nickel strips, and other battery materials using defined sampling plans
• Test cells for OCV, internal resistance (IR), and capacity, and grade and bin them into matched groups
• Define and enforce the grading criteria and matching tolerances used in pack assembly
• Run and maintain cell grading machines, IR testers, and capacity testers
• Carry out in-process and final QC of battery packs, including voltage balance, insulation, BMS function, and charge/discharge tests
• Hold or reject non-conforming lots and raise issues with suppliers
• Maintain test records and traceability linking cell batches to pack serial numbers
• Analyse field failures and warranty returns, and drive corrective actions (RCA / CAPA)
• Prepare and improve QC SOPs and checklists, and train line operators on them
• Share daily and weekly quality reports with management

Preferred candidate profile

• Experience with EV, e-rickshaw, 2-wheeler, or energy-storage battery packs
• Exposure to ISO 9001 or IATF 16949 systems
• Experience setting up a QC process from scratch

Perks and benefits

• Ownership of the quality function, with direct access to leadership
• The chance to build systems in a fast-growing EV company
• Competitive salary based on experience

Requirements

• Diploma or B.Tech in Electrical, Electronics, or EEE
• 36 years of experience in quality or testing in lithium-ion battery pack manufacturing
• Practical knowledge of cell grading, IR/OCV testing, capacity testing, and cell matching
• Familiarity with LFP and/or NMC cells, BMS basics, and pack assembly processes
• Working knowledge of AQL sampling, 7 QC tools, and root-cause analysis
• Good command of MS Excel for test data and reports
• Strong discipline in documentation, and the confidence to stop the line when quality is at risk