ROLE OVERVIEW: We are looking for a Senior Embedded Firmware Engineer with 6–8 years of hands-on experience in embedded product development, particularly in microcontroller-based control systems, power electronics control, data acquisition, and industrial communication.
The candidate should have strong experience in Embedded C, STM32/ARM Cortex-M microcontrollers, timers, ADC calibration, TCP/IP, RS485, MODBUS, SPI, and I²C.
KEY RESPONSIBILITIES:
- Design, develop, and maintain production-grade embedded firmware using Embedded C/C++
- Develop firmware for ARM Cortex-M based microcontrollers, preferably STM32.
- Configure and develop drivers for Timers, PWM, ADC, DMA, SPI, I²C, UART
- Develop firmware for power control and MOSFET switching applications.
- Implement PWM-based control of MOSFETs and power stages.
- Implement ADC calibration, timer-based triggering for ADC sampling and control loops.
- Implement and tune PID/control algorithms where required especially for fast switching applications.
- Develop and debug TCP/IP and Ethernet communication.
- Implement RS485 and MODBUS RTU communication.
- Develop communication protocols and register maps for industrial/control applications.
- Perform hardware–firmware integration and system-level debugging (with STLink or JLink).
- Analyse timing, ADC sampling, PWM, switching, and communication issues using digital oscilloscope.
- Optimize firmware for real-time performance, CPU utilization, memory, and deterministic timing.
- Participate in firmware architecture, design reviews, testing, and documentation.
- Experience in handling digital oscilloscope, logic analyzer.
- Perform root-cause analysis of hardware/firmware issues and provide corrective solutions.
TECHNICAL SKILLS:
Must have:
- Ethernet/lwIP, DMA, PID/control algorithm development
- ADC calibration and timer-based triggering for sampling and control loops.
- Experience with microcontrollers, microprocessor and communication protocols (e.g., SPI, I2C, UART, Ethernet, Modbus, USB).
Good to have:
- Experience with FPGA (VHDL and Verilog), RTOS/FreeRTOS, and Power electronics
- Experience with LVDS and CAN
- Experience with MOSFET switching applications