System & Network Administrator (HSE-RP-CSGRAE)

The Radiation Protection ( RP) Group of the Occupational Health and Safety and Environmental Protection (HSE) Unit ensures that personnel on the CERN sites and the public are protected from potentially harmful effects of ionising radiation linked to CERN activities. The duties of CERNs Radiation Protection Group include the assessment of radiation hazards from operating accelerators and experiments the definition of protective measures as well as the legally required monitoring of the exposure of radiation workers and public to ionising radiation.

You would join the HSE-RP-CS (Characterisation & Services) section to play a key role in administering supporting and advancing the RP groups high-performance computing infrastructure powering the FLUKA Monte Carlo simulations and the virtualised IT systems supporting our state-of-the-art radio-analytical laboratory.

Your responsibilities

• Review the existing Condor based software stack and investigate possibilities to accommodate the next generation of the FLUKA code (V5).
• Communicate regularly with end-users and provide technical support related to the cluster system.
• Participate in further virtualisation and upgrade of the laboratorys server / client IT infrastructure.
• Investigate and prototype a software stack that allows for parallel deployment of new in-house developed machine learning simulation tools on a Condor cluster.

Your profile

Skills :

Eligibility criteria :

Additional Information :

Job closing date : 10.12.2025 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-March-2026

Job reference : HSE-RP-CSGRAE

Field of work : Software Engineering and IT

Benchmark job : 200020 - Computing Engineer

What we offer

About us

At CERN the European Organization for Nuclear Research physicists and engineers are probing the fundamental structure of the universe. Using the worlds 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 .

Diversity has been an integral part of CERNs mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success.

Remote Work : No

Employment Type : Full-time

Key Skills

Network security,Active Directory,Customer Service,LAN,Routers,Windows,Infrastructure,Linux,Internet,Troubleshoot,PC,Backup,Setup,hardware,Technical Support

Experience : years

Vacancy : 1