Employment Type: Full-time
Responsibilities
* Design, develop and commission large, distributed control systems based on Siemens S7-1500 PLCs and the CERN's UNICOS framework.
* Development and use of digital-twins.
* Contribute to the development of SCADA applications with Siemens WinCC OA.
* Contribute to our CI/CD and automated testing framework.
* Supervise students.
Your profile
* Experience in developing, testing, and commissioning Siemens S7-1500 PLC-based control systems.
* Knowledge of automation technologies, including industrial fieldbuses and SCADA.
* Experience with Python programming.
* Knowledge of Git, Gitlab and CI/CD practices.
* Familiarity with system testing or digital-twins.
Skills
* Siemens S7-1500 PLCs and TIA Portal.
* Industrial fieldbuses (Profinet) and HMI/SCADA (WinCC, WinCC OA).
* Python.
* Strong communication skills.
* Spoken and written English, with a commitment to learn French.
* Git, Gitlab, CI/CD.
* Matlab Simulink.
* Digital twins and Hardware-In-The-Loop (HIL) testing.
Eligibility criteria
* You are a national of a CERN Member or Associate Member State.
* You have a professional background in Automation or Software Engineering (or a related field) and have either:
o a Master's degree with 2 to 6 years of post-graduation professional experience;
o or a PhD with no more than 3 years of post-graduation professional experience.
* You have never had a CERN fellow or graduate contract before.
Additional Information
Job closing date: 12.11.2025 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: Hybrid
Target start date: 01-April-2026
This position involves:
* Stand-by duty, when required by the needs of the Organization.
Job reference: SY-EPC-2025-184-GRAP
Field of work: Software Engineering and IT
Benchmark job: 200020 - Computing Engineer
What we offer
* A monthly stipend ranging between 6287 and 6911 Swiss Francs per month (net of tax).
* Coverage by CERN's comprehensive health scheme (for yourself, your spouse and children), and membership of the CERN Pension Fund.
* Depending on your individual circumstances: installation grant; family, child and infant allowances; payment of travel expenses at the beginning and end of contract.
* 30 days of paid leave per year.
* On-the-job and formal training at CERN as well as in-house language courses for English and/or French.
About us
At CERN, the European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature. Find out more on CERN's website.
We are on a Quest. A Journey into discovery like no other. Bring your expertise to our unique work and develop your knowledge and skills at pace. Join world-class subject matter experts on unique projects, in a Quest for greater knowledge and deeper understanding.
Begin your CERN Quest. Take Part!
Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.
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