Embedded Software Engineer - Zephyr RTOS

We are Bertrandt.

An independent, international engineering service provider with decades of expertise. With cross-industry know-how and a comprehensive understanding of systems and products, we create technological solutions across the entire value chain. We focus on the trending topics of digitalization, e-mobility, and autonomous systems, primarily for the automotive, aerospace, defense, and mechanical engineering industries, consistently enabling the development of tailor-made solutions. Our goal: to accelerate technological progress and make a meaningful contribution to a sustainable future. We work toward this every day - with approximately 12,000 employees at over 50 locations worldwide.

We are seeking an experienced Embedded Software Engineer specializing in Zephyr RTOS development. The ideal candidate will be responsible for designing, developing, and maintaining embedded software for microcontroller-based systems, with a strong focus on real-time applications, device drivers, connectivity, and low-level programming.

What to expect:

• Develop embedded software using Zephyr RTOS
• Design and implement real-time applications for MCU-based platforms
• Configure and customize Zephyr kernel, device tree, and board support packages (BSPs)
• Develop and maintain device drivers (SPI, I2C, UART, CAN, GPIO, USB)
• Integrate wireless technologies such as Bluetooth Low Energy (BLE), Wi-Fi, Thread, Zigbee, or Matter
• Debug and optimize embedded systems for performance, reliability, and power consumption
• Work closely with hardware, systems, and test engineers
• Participate in software architecture, code reviews, and integration activities
• Support CI/CD and automated testing for embedded products

What you bring along:

Preferred Experience :

• +3 years in embedded software development
• Hands-on Zephyr RTOS project experience
• Experience with Nordic Semiconductor (nRF52, nRF53, nRF91)
• Experience with NXP, STM, TI, Renesas, or Infineon MCUs
• IoT or connected-device development
• Automotive, industrial, or consumer electronics background

Embedded Development :

• Strong C programming (mandatory)
• Embedded C/C++
• Real-Time Operating Systems (RTOS)
• Multi-threaded embedded systems
• Bare-metal development

Zephyr RTOS :

• Zephyr Kernel
• Kconfig
• Device Tree
• West Build System
• Board Bring-Up
• BSP Development
• Zephyr Networking Stack
• Zephyr Device Drivers

At Bertrandt, we place great importance on equal treatment and equal opportunity. Our hiring decisions are based on the experience and skills of the applicants. People with severe disabilities or those deemed equivalent under SGB IX are warmly welcomed and will be given preference in hiring if equally qualified.

Are you interested?

We look forward to receiving your application!