BESS Mechanical Design Engineer

Larsen & Toubro; Bengaluru; On-site; INR 600,000 - 850,000; Full time

Job summary

Larsen & Toubro invites applications for a Mechanical Design Engineer (Senior Engineer) focused on Battery Energy Storage Systems. You will define form factor, layout, and assembly strategy for modular BESS and containerized enclosures; create 3D models, 2D drawings, BOMs, installation and service manuals; ensure proper revision control.

Collaborating with electrical, thermal, safety, and program management teams, you will design for manufacturability, enable weight reduction, and ensure

Qualifications

• Diploma or BE / BTech in Mechanical Engineering.
• 3–5 years in mechanical design for Energy Storage Systems.
• Proficient in SolidWorks.
• Experience with DFMEA, PFMEA, and design reviews.
• Experience with enclosure and cabinet design.
• Knowledge of IP protection, corrosion resistance, and environmental robustness.

Responsibilities

• Define form factor, layout, and assembly strategy for modular & containerized BESS.
• Prepare and maintain: 3D models & 2D drawings, BOMs & assembly instructions, installation and service manuals.
• Ensure proper revision and change management.
• Design LFP Battery modules, racks, Cabinet & BESS Container structures.
• Integrate thermal management solutions: forced air cooling and liquid cooling.
• Optimize airflow paths, heat sink design, and component placement.
• Coordinate with electrical, thermal, safety, and program teams on placement, cable routing, EMI shielding, and grounding.
• Support DFMEA/PFMEA, prototype builds, and manufacturing ramp-up.
• Testing, validation & compliance with IEC, UL, NFPA and ISO standards.

Skills

3D modeling

Engineering drawings

Thermal management

Structural analysis

Team collaboration

DFMEA/PFMEA

Product design reviews

Cost optimization

Education

BE / BTech in Mechanical Engineering

Diploma in Mechanical Engineering

Tools

SolidWorks

CFD

FEA

Job description

• 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 o 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.
• Integration of Thermal & Cooling Components
• Integrate thermal management solutions: o Forced air cooling o Liquid cooling (cold plates, heat exchangers)
• Optimize airflow paths, heat sink design, and component placement.
• 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.
• Integration with Electrical, Fire & Control Systems
• Coordinate with electrical and control teams on: o Component placement & clearances o 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 Systems
• 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
• Testing, Validation & Compliance
• Support mechanical and environmental testing: o Thermal cycling o IP / ingress tests o 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-----------------------------------