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