Embedded Software Engineer (BE-CEM-EDL-2026-136-GRAE)

Join CERN as an Embedded Software Developer in a collaborative environment.

Tasks

• Develop and maintain software for White Rabbit technology.
• Automate calibration and testing processes for WR devices.
• Support global users and participate in outreach activities., Are you passionate about cutting-edge technology and eager to work on innovative projects? We are looking for an Embedded Software Developer to join the Electronics Design and Low-Level Software (EDL) section within the Control Electronics and Mechatronics (CEM) group at CERN, and be part of the White Rabbit Collaboration Bureau .

White Rabbit is a CERN-born technology and now an industry-standard that provides sub-nanosecond synchronisation and deterministic data transfer to distributed devices interconnected with a WR network.

You will enhance and maintain the basic blocks of this technology, including the software and firmware running on the White Rabbit Switch and the White Rabbit PTP Core , which are deployed in thousands of instances globally. You will also interact with institutes and companies world-wide to help them with integration and deployments of White Rabbit.

Your responsibilities:

• Develop and maintain software and firmware for the WR Switch and the WR PTP Core.
• Maintain GIT repos with dozens of developers.
• Develop and maintain tools to automate calibration and tests of WR devices, including hardware in Continuous Integration (CI) pipelines.
• Assist in the development of production tests to be conducted post-hardware manufacturing.
• Be part of outreach activities in conferences and events to promote WR Technology and the WR Collaboration.
• Support WR users world-wide.
• Collaborate with your colleagues in the hardware/software co-design process, where HDL, firmware, Linux device drivers and host applications are developed and reviewed together.

More information here .

Your profile:

• Development of embedded Linux software and bare-metal firmware.
• Working with an embedded Linux distributions running on SoC of AMD/Xilinx FPGA.
• Measurements with lab tools such as an oscilloscope.
• Debugging of hardware.

• Bachelor's or Master's degree with up to two years of experience.
• Low-level programming in C and embedded Linux expertise.
• Familiarity with Git, Python, and hardware debugging., Required:
• Low-level programming in C, including bare-metal.
• Embedded Linux and Linux Device drivers.
• Git-based development, code reviews, merge requests and CI pipelines.
• Python.
• Spoken and written English, with a commitment to learn French.

Advantageous:

• Testing frameworks, PyTest.
• Basics in FPGA development (VHDL, Verilog, SystemVerilog).
• Capability of understanding PCB schematics.
• Networking and synchronisation protocols (e.g. NTP, PTP).

Eligibility criteria:

• You are a national of a CERN Member or Associate Member State .
• By the application deadline, you have a maximum of two years of professional experience since graduation in Software Engineering (or a related field) and your highest educational qualification is either a Bachelor's or Master's degree.
• You have never had a CERN fellow or graduate contract before.
• Applicants without University degree are not eligible.
• Applicants with a PhD are not eligible.

• A monthly stipend between 5266-5793 Swiss Francs per month (tax free) depending on your degree.
• 30 days of paid leave per year plus 2 weeks annual closure.
• Coverage by CERN's comprehensive health insurance scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
• Family, child and infant monthly allowances depending on your individual circumstances.
• A relocation package (installation grant and travel expenses) depending on your individual circumstances.
• Possibility to extend your contract up to 36 months.
• On-the-job and formal training including language classes.

Imagine taking part in the largest scientific experiment in the world. CERN needs more than physicists and engineers - if you're a student, a graduate, just starting your career or an experienced professional, whatever your field of expertise, CERN could be your next opportunity.