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Embedded Systems Engineer job description

Hire an Embedded Systems Engineer to design, program, and test low-level firmware for hardware products. Optimize system performance for modern devices.

Published August 16, 2024Updated May 16, 20263159 likes

Job brief

We are seeking a highly technical Embedded Systems Engineer to join our product development team and drive the architecture of our next-generation hardware platform. You will be responsible for the full lifecycle of firmware development, from low-level driver creation to high-level application logic on ARM Cortex-based microcontrollers. This is a unique opportunity to see your code control physical hardware and impact the daily operation of our mission-critical systems. If you have a passion for RTOS, C/C++ optimization, and hardware-software integration, we want to build the future with you.

Key highlights

  • Develop and maintain robust, high-performance firmware in C and C++ for ARM Cortex-M or RISC-V microcontrollers within real-time operating systems.
  • Implement and debug communication protocols such as I2C, SPI, UART, USB, and CAN to interface with external hardware sensors and peripherals.
  • Perform hardware-in-the-loop (HIL) testing and use lab equipment like logic analyzers and oscilloscopes to troubleshoot complex firmware-hardware integration issues.
  • Optimize firmware code for low-power consumption and limited memory footprints in battery-operated IoT and wearable product designs.

What is a Embedded Systems Engineer?

An Embedded Systems Engineer is a specialized hardware-software engineer who designs and develops the firmware and operating systems that control electronic devices. By integrating low-level code with microcontrollers, microprocessors, and custom hardware, an Embedded Systems Engineer ensures that products ranging from IoT sensors to industrial robotics function reliably. They operate at the intersection of electrical engineering and computer science, focusing on resource-constrained environments where power efficiency and real-time responsiveness are critical to success.

What does a Embedded Systems Engineer do?

On a typical day, an Embedded Systems Engineer writes hardware-abstraction-layer (HAL) code, debugs firmware using logic analyzers and oscilloscopes, and optimizes memory usage in resource-constrained environments. They collaborate with electrical engineers to design PCB layouts and refine power consumption profiles, ensuring the software interacts seamlessly with sensors and peripherals via protocols like I2C, SPI, and CAN bus. Beyond coding, they participate in hardware-in-the-loop (HIL) testing to validate system stability, write technical specifications for board-support packages (BSP), and document safety-critical software compliance.

Key responsibilities

  • Develop and maintain robust, high-performance firmware in C and C++ for ARM Cortex-M or RISC-V microcontrollers within real-time operating systems.
  • Implement and debug communication protocols such as I2C, SPI, UART, USB, and CAN to interface with external hardware sensors and peripherals.
  • Perform hardware-in-the-loop (HIL) testing and use lab equipment like logic analyzers and oscilloscopes to troubleshoot complex firmware-hardware integration issues.
  • Optimize firmware code for low-power consumption and limited memory footprints in battery-operated IoT and wearable product designs.
  • Design and implement bootloaders, drivers, and board support packages (BSP) to ensure smooth communication between the application layer and hardware.
  • Collaborate with electrical engineers to review schematics and PCB layouts, providing critical input on hardware design decisions that impact software performance.
  • Conduct thorough code reviews and maintain documentation for safety-critical systems, ensuring compliance with industry standards like MISRA C or ISO 26262.
  • Analyze system-level performance bottlenecks and refactor existing codebases to reduce latency and improve system reliability in high-uptime environments.

Requirements and skills

  • Bachelor’s degree in Electrical Engineering, Computer Engineering, or Computer Science with a focus on embedded systems architecture.
  • Deep proficiency in C/C++ programming for embedded systems, with a strong grasp of pointer arithmetic, memory management, and interrupt handling.
  • Proven experience developing firmware for real-time operating systems (RTOS) such as FreeRTOS, Zephyr, or ThreadX.
  • Hands-on expertise with industry-standard debugging tools, including JTAG/SWD emulators, logic analyzers, and digital storage oscilloscopes.
  • In-depth knowledge of microcontroller architectures (e.g., STM32, Nordic nRF, TI Tiva) and peripheral interfacing.
  • Familiarity with version control workflows using Git and experience with CI/CD pipelines for automated firmware build and test processes.
  • Professional certification such as the Embedded Systems Engineering Professional (ESEP) or relevant CompTIA certifications is highly preferred.
  • Strong ability to translate complex hardware-level requirements into clean, maintainable software architecture for technical and non-technical project stakeholders.

FAQs

What does an Embedded Systems Engineer do on a daily basis?

An Embedded Systems Engineer spends their day writing and debugging firmware that controls physical hardware devices. Tasks range from configuring microcontrollers and writing hardware drivers to using lab tools like oscilloscopes to analyze signal integrity. They also spend significant time optimizing code to save battery life and ensuring that the real-time constraints of the system are consistently met.

What are the essential skills for an Embedded Systems Engineer?

Essential skills include mastery of C and C++, understanding of low-level hardware interfaces (I2C, SPI, UART), and experience with real-time operating systems (RTOS). An Embedded Systems Engineer must also be proficient with debugging hardware tools like JTAG and logic analyzers. Furthermore, having a strong grasp of computer architecture and electrical circuit basics is vital for successful hardware-software integration.

Who does an Embedded Systems Engineer work with during development?

They work in highly cross-functional environments, collaborating closely with electrical engineers to ensure software and hardware compatibility. They also coordinate with QA engineers to perform rigorous system validation and with product managers to define functional requirements. In many companies, the Embedded Systems Engineer also acts as a liaison between the hardware design team and the cloud software team for IoT applications.

Why is an Embedded Systems Engineer important for modern companies?

As technology becomes more integrated, companies rely on Embedded Systems Engineers to bridge the gap between abstract software and physical device functionality. Whether it is improving the battery efficiency of a wearable device or ensuring the safety of an industrial control system, this role is critical to product reliability. Without their expertise in low-level coding and hardware awareness, modern smart devices would fail to function or perform to market standards.