Power Electronics Design Engineer-Traction

Larsen & Toubro; Bengaluru; On-site; INR 3,000,000 - 5,500,000; Full time

Job summary

Larsen & Toubro is seeking a Power Electronics Design Engineer – Traction Converter (P10) in Bengaluru to drive design, validation, and optimization of high‑power traction converters for EV powertrains.

You will translate system requirements into schematics and prototypes, collaborate with multidisciplinary teams, and ensure production‑ready designs with strong documentation and testing. Expect challenging, cutting‑edge engineering in a dynamic environment.

Qualifications

• M.Tech in Power Electronics & drives or related discipline.
• 5–10+ years hands‑on experience in power electronics design, preferably in drives or EVs with 10kW+ power rating.
• Expertise in power conversion topologies, high‑voltage design, magnetic component design, switching devices, and gate drive techniques.
• Experience with converter hardware testing and embedded control integration.
• Proficiency in Cadence/Altium, LTspice, PSIM, MATLAB/Simulink, and thermal/EMI simulations.

Responsibilities

• Design and develop power conversion circuits for traction inverters and related modules.
• Perform schematic capture, PCB layout guidance, and component selection for high‑efficiency power circuits.
• Simulate, analyze, and optimize power stages, switching topologies, and thermal performance.
• Collaborate with firmware, mechanical, testing, and manufacturing teams for integration and validation.
• Generate technical documentation including schematics, BOMs, layouts, and validation records.

Skills

Power electronics design

EV drives experience

High‑voltage design

Thermal management

EMI/EMC

Hardware debugging

Documentation

Cross-functional collaboration

PCB design guidance

Circuit simulation

Education

M.Tech in Power Electronics & drives or related discipline

Tools

Cadence/Altium Designer

LTspice

PSIM

MATLAB/Simulink

Job description

Power Electronics Design Engineer – Traction Converter (P10)

As a Power Electronics Design Engineer, you will be responsible for the detailed design, development, and validation of high-performance power electronic components and subsystems used in traction converter for EV power trains. You need to translate system-level requirements into schematics, prototypes, and production-ready designs, playing a key role in bringing cutting‑edge power electronics solutions to life.

Key Responsibilities

• Design and develop power conversion circuits and modules for traction inverters, gate drive and protection circuits based on system-level specifications and requirements.
• Perform detailed schematic capture, PCB layout guidance, and component/device selection for high-efficiency power circuits.
• Perform simulation, analysis, and optimization of power stages, switching topologies, thermal performance, and EMI/EMC characteristics, filter design using tools such as LTspice, PLECS, and MATLAB/Simulink and hardware testing to validate designs.
• High‑voltage DC‑AC traction inverter design.
• DC‑DC converters in vehicle platforms.
• Semiconductor selection (SiC MOSFET / IGBT modules).
• Gate driver circuit design (dv/dt immunity, Miller clamp, short‑circuit protection).
• Switching loss & conduction loss modelling.
• Thermal modelling and cooling strategy definition.
• Magnetics and busbar design optimization.
• Optimize design for motor control algorithms, various drive cycles like WLTP, MIDC.
• Support EMI/EMC mitigation, thermal management, and protection strategy implementation.
• Collaborate with cross‑functional teams (firmware, mechanical, testing, manufacturing) to ensure seamless integration and validation of designs.
• Provide inputs for concept design, packaging and development of the product.
• Support prototype bring‑up, lab testing, and power bench measurements while driving root cause analysis and iterative debugging during validation, field trials, and production ramp‑up.
• Develop test jigs for the testing of the products.
• Generate and maintain comprehensive technical documentation—including schematics, BOMs, layout files, design reports, validation records, and change logs—to ensure traceability and design integrity throughout the development lifecycle.
• Support and participate in design reviews, DFMEA/DFM activities, and failure analysis investigations, contributing to the refinement of design standards and continuous improvement of engineering practices.
• Ownership of design deliverables with strong communication skills, fosters effective collaboration across multidisciplinary teams, and maintains a commitment to continuous learning and engineering excellence.

Required Qualifications & Experience

• M.Tech in Power Electronics & drives or related discipline.
• 5 – 10+ years of hands‑on experience in power electronics design, preferably in drives or EVs with Power rating of 10kW and above.
• Demonstrate in-depth expertise in power conversion topologies, high‑voltage design practices, magnetic component design, switching devices (IGBTs, MOSFETs, SiC/GaN) selection and advanced gate drive techniques.
• Converter Hardware testing experience.
• Experience with embedded control integration and analog/digital interface design.
• Proficiency in design tools such as Cadence/Altium Designer (or equivalent), LTspice, PSIM, MATLAB/Simulink, and thermal/EMI simulation platforms.
• Familiarity with hardware debugging tools including oscilloscopes, power analyzers, and thermal cameras.
• Well‑versed in EMI/EMC compliance, thermal management strategies, protection schemes, and safety and regulatory requirements across component and system‑level design.
• Experience with high‑power, high‑frequency switching applications and thermal/EMC mitigation strategies.
• Knowledge of ISO 26262 (ASIL C/D preferred) requirements.
• Understand the real work requirements.

Preferred Qualifications

• Experience in high‑reliability industrial applications automotive power train.

Expertise in:

• 400V–1000V HV systems
• SiC/IGBT-based traction inverters
• AC-DC and DC-DC automotive converters
• Motor drives and control
• Knowledge of AUTOSAR-based system integration
• Experience with drive cycle analysis and efficiency optimization
• Proficiency in simulation tools (MATLAB/Simulink, PLECS, LTspice)
• Strong hands‑on lab debugging capability
• Familiarity with model‑based design tools and hardware‑in‑the‑loop (HIL) testing environments.
• Self‑driven, detail‑oriented engineer with strong technical documentation, problem‑solving skills, collaborative mind‑set.