Tech Lead -Mechanical Design | Power Electronics Product & Systems (P11b)Role

Provide end-to-end leadership for mechanical engineering 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 (AC-DC/DC-DC Converters, EV Chargers and Industrial Power Electronics products.)Key Responsibilities1.

Mechanical & Thermal Architecture Leadership

Define mechanical system architecture for: High Voltage EV Chargers (AC, DC Rapid, Ultra-Fast)Solar Inverters (String & Central)Automotive On-board Chargers/ Drivetrain inverter /MCU enclosure designindustrial PE products

Own thermal management strategy: Natural & forced air cooling

Liquid cooling (cold plate, immersion where applicable)Heat exchanger and airflow optimization

Define enclosure concepts, IP ratings, corrosion protection, and seismic/wind load compliance.2.

Product Engineering & Execution

Lead teams covering: Mechanical Design & CADPackaging & Industrial Design

Thermal & CFD Engineering

Structural & Sheet-Metal Design

Understand and implement 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.3.

Product Development Lifecycle Ownership

Own mechanical development across: Requirements → Concept → Detailed Design → Prototype → Validation → Production

Implement 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 and maintain: 3D models & 2D drawingsBOMs & assembly instructions

Installation and service manuals

Ensure proper revision and change management.4.

Thermal, Reliability & Environmental Validation

Own thermal validation plans (steady-state, transient, derating analysis).

Coordinate with CFD team - Given input simulations and correlation with physical testing.

Select heatsinks, cooling methods that are manufactural

Ensure compliance with: Temperature rise limits

Noise & vibration requirements

Environmental tests (IP, salt mist, humidity, dust)Perform/Coordinate structural analysis for: Static & dynamic loads

Transportation & seismic conditions

Ensure compliance with wind, seismic, and shock/vibration requirements.

Design for safe lifting, handling, and .

Integration with Electrical & Control Systems

Coordinate with electrical and control teams on: Component placement & clearances

Cable routing and bending radiusEMI shielding & segregation

Ensure creepage, clearance, and safety requirements are mechanically supported.6.

Manufacturing, Quality & Field Support

Support NPI, pilot builds, and production ramp-up.

Drive mechanical failure analysis, field issue RCA,



and corrective actions.

Work with supply chain on: Vendor qualification

Localization & alternate sourcing

Tooling and fixture development

Improve yield, assembly time, and cost in production.7.

Cross-Functional & Business Engagement

Work closely with: Electrical & Power Electronics EngineeringCFD/Thermal, Structural Analysis teams

Systems & Controls

Manufacturing, Quality, and Supply Chain

Act as mechanical authority in customer and certification discussions.

Support pre-sales and customization efforts.

Build and mentor a high-performance mechanical engineering / BTech in Mechanical EngineeringMTech / MS preferred

Experience8+ 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

Mechanical Design, Thermal Engineering, Packaging & Validation

Should have handled team of mechanical design

Should have experience in EV Charger OEMs and Industrial Power Electronics Companies.

Technical Competencies

Thermal management of power electronics

Solidworks/AutoCADUnderstanding CFD tools (ANSYS, Flotherm, Icepak, etc.)Sheet metal, castings, plastics, and structural design

Enclosure design (IP65/IP66/IP67)Shock, vibration, seismic & wind load analysis

Acoustic noise reduction

Leadership & Behavioural Skills

Strong system-level thinking

Decision-making under technical and cost constraints

People leadership & mentoring

Cross-functional collaboration

Continuous improvement mindset

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