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Larsen & Toubro · India>Karnataka>Bengaluru

BESS Mechanical Design Engineer

India>Karnataka>BengaluruDesign

Listed on Larsen & Toubro’s official careers site. Posted October 7, 2026. Check that it is still open and apply there.

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Job description

Key Responsibilities1. Mechanical Architecture & Enclosure, Cabinet & Container Design

  • Define form factor, layout, and assembly strategy for modular & containerized BESS

Prepare and maintain

  • o 3D models & 2D drawings o BOMs & assembly instructions
  • Installation and service manuals
  • Ensure proper revision and change management.
  • Follow design best practices and motivate fellow designers to follow
  • Design LFP Battery modules, racks, Cabinet & BESS Container structures
  • Ensure IP protection, corrosion resistance, and environmental robustness.2. Integration of Thermal & Cooling Components

Integrate thermal management solutions

  • Forced air cooling
  • Liquid cooling (cold plates, heat exchangers)
  • Optimize airflow paths, heat sink design, and component placement.3.

Structural & Mechanical Analysis

  • Design Support for structural FEA for static, dynamic, vibration, fatigue, seismic, and transportation loads.
  • Design for safe lifting, load distribution, shock resistance, clearances, handling, and installation.4. Integration with Electrical, Fire & Control Systems
  • Coordinate with electrical and control teams on:
  • Component placement & clearances
  • Cable routing and bending radius o EMI shielding & segregation o HV/LV cabinets, busbars, grounding points, and cable trays.
  • Ensure creepage, clearance, and safety requirements are mechanically supported.
  • Work with electrical teams to ensure proper placement of
  • Integrate fire detection, suppression, and venting mechanisms (e.g., FACP, smoke ducts, deflagration panels).

Sensitivity

This Document is classified as "LNT General Business". Mechanical Design Engineer (or Senior Engineer) |Battery Energy Storage Systems5. DFM, DFA & Industrialization

  • Design for manufacturability, assembly, and serviceability.
  • Balance performance, safety, manufacturability, and cost.
  • Select materials and finishes considering cost, durability, and environment.
  • Support prototype builds, NPI, and production ramp-up.
  • Drive cost reduction and weight optimization initiatives.
  • Closely Work closely with System engineering, Electrical design team, Thermal engineering, Safety engineering, Program management, Supply chain & manufacturing, Drive design reviews, DFMEA, PFMEA, and issue resolution.
  • Support supplier qualification for racks, sheet metal, and enclosure components.
  • Support Process & manufacturing teams Tooling, jigs & fixtures, Weld & fabrication process selection Assembly line setup, Takt time and manufacturability improvements 6. Testing, Validation & Compliance

Support mechanical and environmental testing

  • Thermal cycling o IP / ingress tests
  • Vibration & shock tests
  • Support certification to IEC, UL, NFPA and ISO standards.
  • Ensure compliance with global mechanical standards
  • Resolve mechanical field issues and drive corrective actions.Education & Experience
  • Diploma or BE / BTech in Mechanical Engineering
  • 3–5 years in mechanical design for Energy Storage Systems, its Enclosure & Cabinet
  • CAD tools (SolidWorks preferred) professional level hands-on experience is must
  • DFM/DFA principles, DFMEA, Proto Development Support
  • Ability to Interpret Thermal, CFD & Structural analysis reports

Preferred Industry Background

  • LFP Battery Pack, BESS Cabinet, & BESS container system manufacturers ----------------------------------------End of Document-----------------------------------

Qualifications

Degree In Mech/Marine Engg

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