Sr. Mechanical design Engineer

Larsen & Toubro; Bengaluru; On-site; INR 900,000 - 1,500,000; Full time

Job summary

Larsen & Toubro in Bengaluru is seeking a Mechanical Design Engineer for Power Electronics Products & Systems. You will design robust, thermally efficient mechanical solutions for indoor and outdoor deployments, focusing on enclosures, cabinets, and layouts.

Responsibilities include thermal management (forced air and liquid cooling), CFD simulations, airflow optimization, structural analysis under static and dynamic loads, and ensuring wind, seismic and vibration compliance.

Responsibilities

• Mechanical Architecture & Enclosure Design
• Design product and system-level mechanical architecture for solar inverters, PCS & BESS containers, EV chargers, electrolysers & power cabinets
• Develop enclosures, cabinets, skids, and container layouts
• Ensure IP protection, corrosion resistance, and environmental robustness
• Thermal & Cooling Design including forced air and liquid cooling
• Perform CFD thermal simulations and support validation
• Optimize airflow paths, heat sink design and component placement
• Structural & Mechanical Analysis for static & dynamic loads, transportation & seismic conditions
• Ensure compliance with wind, seismic, and shock/vibration requirements
• Design for safe lifting, handling, and installation

Skills

Mechanical design

Thermal management

CFD

Enclosures

Structural analysis

Tools

SolidWorks

ANSYS

Job description

Mechanical Design Engineer | Power Electronics Products & Systems

Role Purpose

Design and deliver robust, thermally efficient, and manufacturable mechanical solutions for power electronics products and systems, ensuring reliability, safety, serviceability, and compliance across indoor and outdoor deployments.

Key Responsibilities

• Mechanical Architecture & Enclosure Design
• Design product and system-level mechanical architecture for:
  • Solar inverters (string & central)
  • PCS & BESS containers
  • EV chargers (AC/DC)
  • Electrolysers & power supply cabinets
• Develop enclosures, cabinets, skids, and container layouts.
• Ensure IP protection, corrosion resistance, and environmental robustness.
• Thermal & Cooling Design
• Design thermal management solutions:
  • Forced air cooling
  • Liquid cooling (cold plates, heat exchangers)
• Perform thermal simulations (CFD) and support validation.
• Optimize airflow paths, heat sink design, and component placement.
• Structural & Mechanical Analysis
• Perform structural analysis for:
  • Static & dynamic loads
  • Transportation & seismic conditions
• Ensure compliance with wind, seismic, and shock/vibration requirements.
• Design for safe lifting, handling, and installation.