Senior Embedded Software Engineer

Senior Firmware Engineer with 5-7 years of experience in embedded systems. Role required design, development, and testing of firmware for our IoT products. Working hands-on with microcontrollers, peripheral interfaces, and wireless modules to create efficient and reliable embedded software is essential

Key Responsibilities

• Low-Power Firmware Development: Architect, implement, and optimize embedded C/C++ firmware for ultra-low-power microcontrollers to maximize battery life.

• Power Management & Optimization: Design and implement power management strategies, leveraging MCU low-power modes (Sleep, Deep Sleep, Hibernate, etc.).

• Profile and analyse power consumption using tools like power analysers and ammeters to identify and eliminate power drains.

• Develop event-driven firmware architectures that keep the system in the lowest possible power state.

• Interface with and develop drivers for a wide range of peripherals and sensors using communication protocols like I2C, SPI, UART, ADC, PWM, and GPIO.

• Wireless Connectivity for IoT: Integrate and configure low-power wireless communication stacks, including Bluetooth Low Energy (BLE), LoRaWAN, Zigbee.

• Expertise in managing connection intervals, transmit power, and radio duty cycling is essential.

• System Implementation: Work with Real-Time Operating Systems (FreeRTOS, Zephyr, etc.) to build multi-threaded embedded applications.

• Testing & Validation: Collaborate with the hardware team on board bring-up and validation, focusing on power characteristics.

• Develop and execute tests to verify power consumption against design specifications.

• Performance Optimization: Analyze and optimize firmware for performance, memory usage, and power consumption in resource-constrained environments.

• Collaboration: Work closely with hardware, software, and cloud teams to ensure seamless end-to-end system functionality.

• Participate actively in code and design reviews.

Required Qualifications & Experience

• Bachelors degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field.

• 5-7 years of professional experience in embedded firmware development.

• Strong proficiency in embedded C programming; experience with C++ is a plus.

• Hands-on experience with microcontroller architectures (e.g., STM32, NXP, ESP32, Nordic nRF series).

• Proven experience with peripheral interfaces such as I2C, SPI, UART, and ADC.

• Practical experience integrating and developing drivers for sensors and memory chips (e.g., Flash, EEPROM).

• Deep understanding of power profiling techniques and experience with relevant lab equipment.

• Demonstrable experience with at least one modern wireless IoT protocol: BLE, LoRaWAN, or Zigbee.

• Experience working with an RTOS (e.g., FreeRTOS, Zephyr).

• Proficiency with embedded toolchains (GCC, ARM GCC), debuggers (JTAG, SWD), and version control (Git).

• Solid understanding of software development lifecycles and best practices.

Preferred Qualifications

• Experience with Python for test automation and scripting.

• Familiarity with IoT cloud platforms (e.g., AWS IoT, Azure IoT, Google Cloud IoT) and communication protocols (MQTT, CoAP).

• Exposure to low-power design techniques and power profiling tools.

• Basic knowledge of reading electronic schematics and using lab equipment.

• Understanding of embedded security concepts.

• Experience with Over-the-Air (OTA) firmware update mechanisms.