Job Description

You will join a dynamic team of IT engineers who manage over 500 servers, support over 10,000 Windows and 3,000 Mac endpoint devices, and provide over 100 software applications to the CERN user community. In this role, you will strengthen the security posture of Windows endpoints and services while helping to operate and evolve Windows Server and Microsoft SQL Server environments supporting business-critical applications across development, test, and production.

Your responsibilities

Manage endpoint device security for Windows and macOS, including operations of Antivirus and Endpoint Detection & Response (EDR), both infrastructure and client deployment.
Deploy, operate, and maintain Microsoft SQL Server environments (development, test, production).
Develop and maintain service management and automation tooling using Microsoft .NET and PowerShell.
Conduct security audits and drive improvements for client-server protocols, authentication methods, and security ciphers.
Configure and maintain endpoint devices and application installation packages; contribute to configuration management and automation (e.g., Intune, MECM, PowerShell DSC, Puppet).
Deploy and maintain Windows Server services supporting enterprise applications.
Assess and support workload evolution, including feasibility studies for cloud deployment (cost, performance, and operational impact).
Implement monitoring tools and procedures to ensure availability, performance, and timely incident detection.

Your profile

Experience deploying, operating, and troubleshooting endpoint security solutions (AV/EDR).
Experience administering database server environments.
Experience in software development or scripting for the Windows platform using Microsoft .NET and PowerShell.
Experience in Windows systems administration.
Experience with automation and configuration management in Windows environments is an advantage.

Skills

Security mindset: interest in security and configuration management; ability to translate security requirements into practical, maintainable controls.
Endpoint protection: understanding of AV/EDR operations, baselining, hardening, and secure configuration practices.
Database fundamentals: good understanding of database systems and SQL.
Windows: knowledge of and interest in Windows client and server administration.
Scripting & automation: PowerShell, Microsoft .NET; ability to build tools that improve operational efficiency and security. Knowledge of Puppet, Grafana, Git, Docker, and exposure to commercial cloud platforms would be an advantage.
Communication skills: good communication skills and ability to collaborate with diverse technical and non-technical stakeholders.
Nice to have: familiarity with Active Directory, OS deployment, and common Microsoft enterprise services would be an advantage.
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 IT, Computing, 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.

Additional Information

Job closing date: 27.05.2026 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-July-2026

Job reference: IT-CD-DPP-2026-133-GRAE

Field of work: Software Engineering and IT

Benchmark job: 200020 - Computing 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.

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

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