Embedded Software Design Engineer

Larsen & Toubro; Bengaluru; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Larsen & Toubro is seeking an experienced embedded firmware engineer to design, implement, and validate real-time control platforms for advanced power electronic systems, including DC/DC converters, inverters, and motor drives.

You will bridge hardware and software, develop drivers, and verify control strategies with MATLAB/Simulink, PLECS, and HIL testing, ensuring safety and compliance across IEC/UL standards.

Qualifications

• B.TECH/M.Tech in Embedded Systems, Power Electronics, or a related discipline.
• 3–6 years of experience in embedded hardware and firmware development for power electronic systems.
• Proficiency in embedded C/C++, real-time control development, peripheral configuration, and mixed-signal hardware design.
• Hands-on experience with microcontrollers and DSPs (TI C2000, STM32, Infineon), FPGAs, and communication protocols (CAN, SPI, I²C, UART).
• Familiarity with RTOS (FreeRTOS/TI-RTOS) and functional safety diagnostics (ASIL) is preferred.
• Experience with LAB tools (oscilloscopes, logic analyzers, power analysers) and model-based design (MATLAB/Simulink, PLECS).

Responsibilities

• Develop real-time firmware in C/C++ for MCUs, DSPs, and FPGAs implementing control algorithms (PID/state machines, voltage/current regulation).
• Develop low-level drivers for controllers and PWM strategies; ensure robust signal integrity and fault handling.
• Collaborate with hardware, mechanical, systems, and validation teams for architecture and integration.
• Perform hardware bring-up, interface testing, and system-level debugging using oscilloscopes and JTAG.
• Support model-based design, HIL testing, and safety documentation (IEC/ISO standards).
• Document firmware architecture, test protocols, safety plans, and verification reports.

Skills

Embedded C/C++

Real-time control

Microcontroller/DSP

Sensor integration

Debugging hardware

Education

B.Tech / M.Tech in Embedded Systems or Power Electronics

Tools

Code Composer Studio

Keil

IAR

STM32Cube

Job description

Job DescriptionEmbedded Firmware for Power ElectronicsRole overviewyou will be responsible for the end-to-end design, architecture, development, and validation of embedded control platforms for next-generation power electronic systems—including DC/DC converters, inverters, motor drives, battery management systems and EV charging solutions. Bridging hardware development and real-time embedded firmware implementation, you will drive end-to-end integration, ensuring robust signal integrity, functional safety Compliance, and deliver robust, production-ready solutions for Power Electronics in various domains. This role requires hands-on ownership, cross-functional collaboration, and a commitment to high-performance, scalable embedded design.Key ResponsibilitiesDevelop real-time firmware in C/C++ for microcontrollers, DSPs, and FPGAs, implementing control algorithms (PID/state machines, voltage/current regulation), PWM strategies (soft start/stop, dead-time control), diagnostics, and communication protocols (CAN, SPI, I²C, UART).Develop low level drivers for controllers.Simulate and verify control strategies using MATLAB/Simulink and PLECS; support model-based design and HIL testing.Ensure compliance with IEC, UL, and other relevant safety, regulatory standards, supporting diagnostics, fault handling and system protection.Conduct hardware bring-up, interface testing, and system-level debugging using oscilloscopes, logic analyzers, JTAG, and power analysers.Collaborate with cross-functional teams(power electronics, mechanical, systems, validation)to define control architectures, timing constraints, safety-critical behaviours and ensure seamless hardware-software integration.Generate and maintaincomprehensivedesign documentation, including firmware architecture, test protocols,safety plans, and firmware verification reportsSupport DFM, DFMEA, and HIL testing activities, contributing to design refinement and product maturity from prototype to production.Knowledge of embedded hardware platforms for power electronics systems, including control boards, analog/digital, mixed-signal interface design, sensor integration, and protection strategy implementation for DC/DC, AC/DC, and inverter topologiesRequired QualificationsB.TECH/M.Tech in Embedded Systems, Power Electronics, or a related discipline.3-6 years of experience in embedded hardware and firmware development for power electronic systems in industrial and automotive sectorsProficiency in embedded C/C++,real-time control development,real-time system programming, peripheral configurationand mixed-signal hardware design.Strong hands-on experiencewith microcontrollers and DSPs (e.g., TI C2000, STM32, Infineon), FPGAs, and communication protocols (CAN, SPI, I²C, UART)Familiarity with tools like Code Composer Studio (TI), Keil, IAR, STM32Cube.Familiarity with RTOS (e.g., FreeRTOS, TI-RTOS), watchdog implementations, fail-safe architectures, and functional safety diagnostics (ASIL compliance)Experience with LAB tools (such as oscilloscopes, logic analyzers, power analyzers, etc.)Exposure to model-based design and simulation environment (MATLAB/Simulink, PLECS, LTspice) and version control systems (e.g., Git)Preferred QualificationsExperience with high-voltage power converters, traction inverters, or motor drive control systemsFamiliarity with model-based development (MIL/SIL/HIL), auto-code generation (e.g., Simulink Coder), and control validation workflows.Understanding of ISO 26262 safety lifecycle, including documentation practices and compliance supportKnowledge of secure embedded architectures, firmware modularization, and OTA update strategies including secure bootloadersStrong collaboration, system-level thinking, and documentation skills, with a passion for code quality and continuous improvement

• Understanding in schematic design, PCB layout practices.Knowledge of EMI/EMC mitigation, analog/digital mixed signal interfacing, thermal design, and high-voltage design practicesExposure to cybersecurity principles, diagnostics frameworks, and robust communication stacks for automotive or industrial systems