Mechanical Design Engineer

Job description

LNT/MDE/1750662 - DEIC-L&T Precision Engineering & Systems IC - Bengaluru - Posted On 23 Jun 2026 - End Date 20 Dec 2026 - Required Experience8 - 13 years ## **Skills** #### **Knowledge & Posting Location** Product Design Product Development Leadership Abilities Power Electronics Power Converters Mechanical Engineering Solidworks ANSYS Autocad CAD Enclosure Design Panel Design ESC - Electronic System Cooling Thermal Management Packaging Engineering Manufacturing #### **Minimum Qualification** Bachelor of Technology (BTech) ## **Job Description** **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 Responsibilities** **1. Mechanical & Thermal Architecture Leadership** - Define mechanical system architecture for: - High Voltage EV Chargers (AC, DC Fast, Ultra-Fast) - Solar Inverters (String & Central) - Automotive On-board Chargers/ Drivetrain inverter /MCU enclosure design - industrial 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 & CAD - **Packaging & 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 initiatives. - Prepare and maintain: - 3D models & 2D drawings - BOMs & 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 installation. **5. 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. **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 Engineering - CFD/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 organization. **Education** - BE / BTech in Mechanical Engineering - MTech / MS preferred **Experience** - 8+ 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/AutoCAD - Understanding 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