Senior Engineer - Batter Pack Design and validation (Li-Ion)

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 feasibility

Required 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.