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Senior Firmware Engineer

HCLTech

6 - 10 years

Chennai

Posted: 08/01/2026

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Job Description

Job Description: Firmware / Embedded Software Engineer

Role Overview

We are looking for a skilled Embedded Software Engineer to design, develop, and maintain firmware for microcontroller-based embedded systems. The role involves low-level programming in Embedded C , working with RTOS , and implementing communication protocols while interfacing with various hardware peripherals.

Key Responsibilities

  • Design, develop, and debug embedded firmware using Embedded C
  • Develop and maintain applications on RTOS-based systems (FreeRTOS, ThreadX, Zephyr, etc.)
  • Implement and maintain communication protocols such as UART, SPI, I2C, CAN, USB, Ethernet, MQTT, or Modbus
  • Work with microcontrollers (ARM Cortex-M, STM32, NXP, TI, Microchip, etc.)
  • Configure and interface peripherals : GPIO, Timers, ADC, DAC, PWM, Watchdog, DMA
  • Perform board bring-up and low-level driver development
  • Debug using JTAG/SWD , logic analyzers, oscilloscopes
  • Optimize firmware for performance, memory, and power consumption
  • Collaborate with hardware, QA, and system teams
  • Follow coding standards, documentation, and version control (Git)

Required Skills & Qualifications

  • Strong proficiency in Embedded C
  • Hands-on experience with RTOS concepts (tasks, scheduling, semaphores, mutexes, queues, interrupts)
  • Experience with microcontroller architectures
  • Solid understanding of embedded peripherals and registers
  • Experience implementing communication protocols
  • Familiarity with bare-metal and RTOS-based firmware
  • Debugging skills using hardware and software tools
  • Understanding of memory management, linker scripts, and boot process

Good to Have

  • C++ for embedded systems
  • Embedded Linux exposure
  • Bootloaders and firmware update mechanisms (OTA)
  • Low-power design techniques
  • Safety or automotive standards (MISRA, ISO 26262)
  • Experience with CI/CD for embedded systems

Education

  • Bachelors degree in Electronics, Computer Engineering, or related field

Experience Level (Customize)

  • Senior : 6- 10 years

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