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CERN
Geneva, Switzerland, Europe, hybrid · hybrid · 40-40 hours/week
#### Job Description
As the successful candidate you will contribute to the CERN Computer Security Office by 1) maintaining, extending and developing extra functionality for its Security Operations Centre, i.e. the central hub for incident detection and response, and, 2) and in parallel, securing CERN's contracted external cloud services (i.e. AWS and Oracle cloud, but also reviewing Microsoft Azure, Microsoft 365, Google Cloud Platform and Google Workspace set-ups).
**Your responsibilities**
Your main tasks will include:
- Take an active role in maintaining, supporting, and extending the Computer Security Office's incident detection and response infrastructure (its "Security Operating Centre") based on open source technologies (e.g. "Zeek", OpenSearch, Apache Kafka, Kubernetes, "MISP"). - Configure the IT department's newly contracted external cloud services (i.e. AWS, GCP, Azure and Oracle) such that their functionality and data maximally benefit from all relevant inherent security settings. - Review, in addition, the current security posture and configuration of CERN's existing Microsoft and Google SaaS cloud configurations.
As side-tasks, you will have the opportunity to:
- Contribute to other computer security projects managed by the Office. - Providing advice and consultancy in matters of computer security, including performing penetration testing.
More information [here](https://cern.ch/security).
**Your profile**
- Experience in design of networks as well as knowledge of communication technologies and protocols. - Experience in administration of computing systems as well as installation, operation and maintenance (preventive and corrective) of computing systems. - Experience in "computer security", secure configurations, security analysis and penetration testing, and, in particular, that of cloud services. - Ideally, but in addition, experience in monitoring and responding to security threats and incidents for ICT systems.
Skills
- Excellent knowledge of the Linux/UNIX operating system, virtualisation, databases, and in particular of shell scripting and programming (Python, and/or C), other languages or technologies would be a plus. - Knowledge of cloud frameworks like Kubernetes. - Knowledge of best practises for developing secure software and of, development and integration of IT security (features), in particular in AWS, Google and MS cloud environments. - Spoken and written English, with a commitment to learn French.
Eligibility criteria:
- You are a national of a [CERN Member or Associate Member State](https://home.cern/about/member-states). - **By the application deadline,** you have a **maximum of two years of professional experience since graduation** in Computer Science (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.
Apply on source siteListed via 4dayweek.io
#### Additional Information
Job closing date: 30 **.09.2026 at 23:59 CEST.**
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-October-2026
This position involves:
- Stand-by duty, when required by the needs of the Organization. - Work during nights, Sundays and official holidays, when required by the needs of the Organization.
Job reference: IT-DI-CSO-2026-190-GRAE
Field of work: Software Engineering and IT
Benchmark job: 200020 - Computing Engineer
**Global Benefits**
- A monthly net stipend of either 5266 or 5793 Swiss Francs per month 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.
**Overview of CERN - Discover a world where the impossible is made possible!**
At CERN, the European Organization for Nuclear Research, we are pushing the frontiers of science and technology. Our groundbreaking work brings together not only physicists but also a diverse range of professionals from engineering, technical, scientific, and administrative fields. Together, we foster an environment where innovation and collaboration thrive.
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!**
**More information about us, here:** [**careers.cern**](https://careers.cern/)