Software Engineer (SY-BI-SW-2026-47-GRAE)

Join our team and contribute to the renovation and development of real-time software for the LHC, SPS and AWAKE Beam Position Monitors (BPMs). Your work will focus on re-engineering existing codebases and communication protocols, as well as developing new solutions to integrate SoC-based platforms for the High Luminosity LHC and AWAKE into the accelerator control system.

Your responsibilities

• Re-engineer and refactor low-level C++ code across four existing systems, with the aim of homogenising codebases and improving long-term maintainability.
• Contribute to the development of new AWAKE BPM processing routines.
• Conceive, design and develop software for testing and validation, including hardware-in-the-loop test benches.
• Qualify the integration of the revised legacy and new SoC-based BPM systems into the LHC feedbacks.
• Develop new Python tools and GUIs (graphical user interfaces) for experts.
• Port existing C++ command line tools to Debian.
• Support the teams during commissioning of the developed software once deployed in the accelerator control system.

More information here.

Your profile

• Hands-on experience in low-level real-time software development using C/C++.
• Hands-on experience in GUI development and data analysis with Python.
• Familiarity with unit testing and continuous integration is an advantage.
• Experience using tools such as code assistants, particularly in the domain of code refactoring and continuous integration, is an advantage.

Skills

• C++ and Python.
• Knowledge of real-time principles.
• Good understanding of Object-Oriented Programming.
• Spoken and written English, with a commitment to learn French.

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 similar (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.

Job closing date: 08.03.2026 at 23:59 CET.

Contract duration: 24 months, with a possible extension up to 36 months maximum.

Working hours: 40 hours per week

Job flexibility: Fully Onsite

Target start date: 01-May-2026

Job reference: SY-BI-SW-2026-47-GRAE

Field of work: Software Engineering and IT

Benchmark job: 301130 - Computing Technical Engineer

Global Benefits

• 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.

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Every day, we face exciting new challenges and opportunities to contribute to cutting-edge research that shapes our understanding of the universe. We meet these challenges through the diverse perspectives within our teams, ensuring every contribution is valued and driving our shared sense of inclusion and purpose. Diversity is a core value of CERN since its foundation, and it remains central to our mission and continued success.

If you are ready to be part of a dynamic, inclusive community pushing the boundaries of knowledge, CERN is the place where your curiosity and skills can thrive. Be part of our mission to uncover what lies at the heart of the universe! TAKE PART!

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