Mechanical Design Engineer | Power Electronics Products & SystemsRole PurposeDesign 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 DesignDesign product and system-level mechanical architecture for:Solar inverters (string & central)PCS & BESS containersEV chargers (AC/DC)Electrolysers & power supply cabinetsDevelop enclosures, cabinets, skids, and container layouts.
Ensure IP protection, corrosion resistance, and environmental robustness.
• Thermal & Cooling DesignDesign thermal management solutions:Forced air coolingLiquid cooling (cold plates, heat exchangers)Perform thermal simulations (CFD) and support validation.
Optimize airflow paths, heat sink design, and component placement.
• Structural & Mechanical AnalysisPerform structural analysis for:Static & dynamic loadsTransportation & seismic conditionsEnsure compliance with wind, seismic, and shock/vibration requirements.
Design for safe lifting, handling, and installation.
• Integration with Electrical & Control SystemsCoordinate with electrical and control teams on:Component placement & clearancesCable routing and bending radiusEMI shielding & segregationEnsure creepage, clearance,



and safety requirements are mechanically supported.
• DFM, DFA & IndustrializationDesign for manufacturability, assembly, and serviceability.
Select materials and finishes considering cost, durability, and environment.
Support prototype builds, NPI, and production ramp-up.
Drive cost reduction and weight optimization initiatives.
• Testing, Validation & ComplianceSupport mechanical and environmental testing:Thermal cyclingIP / ingress testsVibration & shock testsSupport certification to IEC, UL, and ISO standards.
Resolve mechanical field issues and drive corrective actions.
• Documentation & Configuration ControlPrepare and maintain:3D models & 2D drawingsBOMs & assembly instructionsInstallation and service manualsEnsure proper revision and change management.
Key KPIsThermal performance & reliabilityFirst-pass build successCost & weight targetsField failure rateEducation & ExperienceBE / BTech in Mechanical Engineering3-10+ years in mechanical design for power electronics or industrial equipmentExperience in Enclosure & cabinet design,Robust understanding in Thermal management & CFD, Structural analysisCAD tools (Creo, SolidWorks, NX)DFM/DFA principlesPreferred Industry BackgroundSolar inverter OEMsPCS / BESS system manufacturersEV charging infrastructureIndustrial power electronics

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