Job Title

Role Overview:We are hiring a Senior Engineer with in-depth expertise in the design, testing, and validation of battery packs for Battery Energy Storage Systems (BESS). This role will be responsible for developing safe, reliable, and high-performance lithium-ion battery pack systemsfrom cell selection and mechanical/electrical design to testing, validation, and compliance.The ideal candidate will work cross-functionally with R&D, manufacturing, and QA/QC teams to deliver battery pack solutions that meet performance, safety, thermal, and regulatory standards for grid-scale, commercial and industrial applications.Key Responsibilities:- Design battery pack architecture (cell-to-module, module-to-pack) including mechanical layout, electrical schematics, and thermal systems. - Select appropriate cells (LFP, NMC, etc.) based on application-specific performance and safety criteria. - Integrate and validate Battery Management Systems (BMS), thermal protection, contactors, and fuse logic. - Collaborate with mechanical design teams on enclosures, structural integrity, and thermal management. - Define and execute DFMEA, validation plans, and test protocols for pack-level performance, lifecycle, thermal, and abuse tests. - Lead charge/discharge cycle testing, aging studies, and thermal runaway simulations. - Coordinate with external labs for certifications (e.g., UL 9540A, UN38.3, IEC 62619, etc.). - Analyze test data for SoH, SoC, degradation, impedance, and thermal characteristics. - Generate detailed design reports, validation reports, and compliance documentation. - Work with component vendors (cells, BMS, thermal materials) for specifications, sourcing, and testing. - Interface with internal engineering, field, and manufacturing teams to integrate design feedback and optimize production feasibilityRequired Qualifications:- B.E./B.Tech or M.E./M.Tech in Electrical, Electronics, Power Systems, or Mechatronics. - 3+ years experience in battery pack design, thermal/electrical integration, and validation. - Deep understanding of Li-ion chemistry (LFP/NMC) , Li-ion cell behaviour, SoC/SoH metrics, and degradation mechanisms. - Strong knowledge of BMS design, CAN communication, and thermal runaway mitigation.