Embedded Firmware Engineer — Zephyr Platform & HIL

dormakaba International Holding AG; Madrid; On-site; EUR 52,000 - 70,000; Full time

Benefits offered by this job

Health Insurance

26 Days Annual Leave

14 Public Holidays

Flexible schedule

Flexible remuneration

Job summary

dormakaba is expanding its embedded software team in the Community of Madrid, Spain, to build future-proofed access control products. You will develop, maintain and evolve embedded firmware across the Automatic Access Solutions portfolio and migrate to the Zephyr-based ECPLA platform.

Join a team delivering reliable, secure firmware across hardware interfaces, with UK/EU collaboration and high-profile deployments worldwide. Experience in ARM Cortex-M, RTOS, and Zephyr is highly valued.

Qualifications

• 3–5 years in embedded firmware development on ARM Cortex-M microcontrollers.
• Experience with at least one RTOS.
• Comfortable with embedded debugging (SWD/JTAG, logic analyser, oscilloscope) and reading schematics/datasheets.
• Working knowledge of Git and embedded build/toolchain workflows.
• Business English fluency.

Responsibilities

• Develop and maintain embedded firmware in C for Automatic Access Solutions.
• Work with Keil MDK and FreeRTOS while migrating to Zephyr-based ECPLA platform.
• Learn Zephyr devicetree, Kconfig, and West toolchain for integration.
• Write unit tests and support hardware–software integration tests.
• Bring up hardware–software integration and debugging.

Skills

Embedded C

RTOS

Embedded debugging

Git

Schematic reading

Devicetree / Kconfig (Zephyr)

ARM Cortex‑M

Tools

Keil MDK

FreeRTOS

Zephyr

Job description

dormakaba is expanding its embedded software team in the Community of Madrid, Spain, to build future-proofed access control products. You will develop, maintain and evolve embedded firmware across the Automatic Access Solutions portfolio and migrate to the Zephyr-based ECPLA platform.

Join a team delivering reliable, secure firmware across hardware interfaces, with UK/EU collaboration and high-profile deployments worldwide. Experience in ARM Cortex-M, RTOS, and Zephyr is highly valued.