Sr. 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.
Integration with Electrical & Control Systems
Coordinate with electrical and control teams on:
Component placement & clearances
Cable routing and bending radius
EMI shielding & segregation
Ensure creepage, clearance, and safety requirements are mechanically supported.
DFM, DFA & Industrialization
Design for manufacturability, assembly, and serviceability.
Select materials and finishes considering cost, durability, and setting.
Support prototype builds, NPI, and production ramp-up.
Drive cost reduction and weight optimization initiatives.
Testing, Validation & Compliance
Support mechanical and environmental testing:
Thermal cycling
IP / ingress tests
Vibration & shock tests
Support certification to IEC, UL, and ISO standards.
Resolve mechanical field issues and drive corrective actions.
Docu

📌 Sr. Mechanical Design Engineer (Bengaluru)
🏢 Larsen and Toubro
📍 Bengaluru