Group Lead -Mechanical Design

Larsen & Toubro; Bengaluru; On-site; INR 3,500,000 - 7,000,000; Full time

Job summary

Larsen & Toubro in Bengaluru seeks a senior mechanical engineering leader to define mechanical architecture and thermal strategies for high-power power electronics products, including Solar Inverters, BESS, EV chargers, and industrial PE systems.

You will lead multi-disciplinary teams across design, thermal, packaging, validation and manufacturing, drive DFM/DFS, and ensure reliability through the full product lifecycle from concept to mass production.

Qualifications

• 15+ years in mechanical engineering for power electronics or industrial products.
• Proven leadership in high-power, thermally constrained systems.
• Experience from concept to mass production environments.
• Experience with Solar Inverter & PCS, BESS containers, EV Chargers, and industrial PE.

Responsibilities

• Define mechanical system architecture and thermal strategy for PE products.
• Lead mechanical design, thermal, packaging and validation teams.
• Own the product development lifecycle from requirements to production.
• Drive DFM, DFA and DFS to optimize cost, reliability and serviceability.
• Support cross-functional and customer discussions and mentor team.

Skills

Mechanical Design

Thermal Engineering

Packaging Design

CAD

DFM / DFA / DFS

Leadership

Education

BE / BTech in Mechanical Engineering

MTech / MS preferred

Tools

CAD

CFD

Job description

Provide end-to-end leadership for mechanical engineering and thermal systems of power electronics products and integrated systems, ensuring robust mechanical architecture, effective thermal management, environmental protection, manufacturability, and lifecycle reliability across high-power, high-density electrical platforms (Solar Inverters, BESS/PCS, EV Chargers, Electrolysers, and Industrial Power Electronics products.)

Key Responsibilities

• Mechanical & Thermal Architecture LeadershipDefine mechanical system architecture for:Solar Inverters (String & Central)BESS / PCS Cabinets & ContainersEV Chargers (AC, DC Fast, Ultra-Fast)Electrolyser Power Supply Systems and other industrial PE productsOwn thermal management strategy:Natural & forced air coolingLiquid cooling (cold plate, immersion where applicable)Heat exchanger and airflow optimizationDefine enclosure concepts, IP ratings, corrosion protection, and seismic/wind load compliance.
• Product Engineering & ExecutionLead teams covering:Mechanical Design & CADThermal & CFD EngineeringStructural & Sheet-Metal DesignPackaging & Industrial DesignEstablish mechanical design standards, guidelines, and review processes.Drive power density improvements through optimized packaging.Ensure design trade-offs between cost, thermal performance, reliability, acoustics, and serviceability.
• Product Development Lifecycle OwnershipOwn mechanical development across:Requirements → Concept → Detailed Design → Prototype → Validation → ProductionImplement V-Model / Stage-Gate / APQP processes.Drive Design for Manufacturability (DFM), Design for Assembly (DFA), and Design for Serviceability (DFS).Lead value engineering and cost-reduction initiatives.
• Thermal, Reliability & Environmental ValidationOwn thermal validation plans (steady-state, transient, derating analysis).Drive CFD simulations and correlation with physical testing.Ensure compliance with:Temperature rise limitsNoise & vibration requirementsEnvironmental tests (IP, salt mist, humidity, dust)
• Manufacturing, Quality & Field SupportSupport NPI, pilot builds, and production ramp-up.Drive mechanical failure analysis, field issue RCA, and corrective actions.Work with supply chain on:Vendor qualificationLocalization & alternate sourcingTooling and fixture developmentImprove yield, assembly time, and cost in production.
• Cross-Functional & Business EngagementWork closely with:Electrical & Power Electronics EngineeringSystems & ControlsManufacturing, Quality, and Supply ChainAct as mechanical authority in customer and certification discussions.Support pre-sales and customization efforts.Build and mentor a high-performance mechanical engineering organization.EducationBE / BTech in Mechanical EngineeringMTech / MS preferredExperience15+ years in mechanical engineering for power electronics or industrial productsProven leadership in high-power, thermally constrained systemsExperience from concept to mass production environmentsMechanical Design, Thermal Engineering, Packaging & ValidationShould have handled team of mechanical designShould have experience in Solar Inverter & PCS ,BESS Container ManufacturersEV Charger OEMs and Industrial Power Electronics Companies.