DevOps Engineer for HEP GPU Benchmarks - European Organization for Nuclear Research (Geneva)

About this position

The summary below is published by European Organization for Nuclear Research on the official vacancy notice. Our own analysis — salary realism, comparable openings, career trajectory, language profile — follows further down the page.

Key responsibilities

According to the vacancy notice, the role centres on the following duties:

• Contribute to development, packaging, and distribution of HEP benchmark software stack
• Integrate, profile, and validate production-level GPU application workloads from LHC experiment software
• Build, test, and maintain container images of HEP workloads using automated GitLab CI/CD pipelines
• Ensure smooth operation of core benchmarking infrastructure and data ingestion services
• Collect, process, and analyze grid-wide benchmark data to evaluate performance scaling
• Provide technical support and documentation to WLCG user community

Are you eligible?

Check these requirements from the notice before investing time in an application:

• Education: Master's degree or PhD in Applied Physics, Software Engineering, or related field
• Experience: Master's degree with 2 to 6 years of post-graduation professional experience, or PhD with no more than 3 years of post-graduation professional experience
• Languages: English (spoken…), French (commitm…)
• Key skills: Python programming (code, packaging, testing), Bash scripting, Git, Docker, Apptainer/Singularity, NVIDIA Container Toolkit, CUDA, AMD ROCm, GPU profiling, GitLab CI/CD
• Eligibility: National of a CERN Member or Associate Member State. Never had a CERN fellow or graduate contract before.

Contract and working arrangements

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

Working arrangements: Fully Onsite.

Hiring unit: IT Department.

Position details

Reference

IT-CE-LCG-2026-168-GRAP

Last Verified

27 October 2026

Position overview

This is the official EU Careers listing for DevOps Engineer for HEP GPU Benchmarks at CERN based in Geneva (Other). The vacancy reference is IT-CE-LCG-2026-168-GRAP. The role falls under the Research domain.

The Worldwide LHC Computing Grid (WLCG) project is a global collaboration of around 170 computing centres in more than 40 countries, linking up national and international grid infrastructures. As computing evolves for the High-Luminosity LHC (HL-LHC) era, WLCG faces a rapidly growing computing demand alongside increasingly heterogeneous hardware environments (CPUs, GPUs, Cloud, and HPC).

To guide procurement, resource pledging, performance studies and accounting, the High Energy Physics (HEP) community relies on domain-specific benchmarking tools to accurately measure and compare computing resources.

As a Graduate / Applied Engineer (QUEST), you will join our team in CERN's IT Department to support the development, operation, and user support for WLCG HEPScore benchmarking services. You will contribute to key activities, helping to build and maintain the next-generation benchmarking software stack for the WLCG community.

Your responsibilities

- Software Development: Actively contribute to the development, packaging, and distribution of the HEP benchmark software stack. Integrate, profile, and validate production-level GPU application workloads from LHC experiment software (e.g., event generation, simulation, fast inference, and HLT). - Containerisation: Build, test, and maintain container images of HEP workloads using automated GitLab CI/CD pipelines. - Service Maintenance & Enhancement: Ensure the smooth operation of the core benchmarking infrastructure and data ingestion services using Puppet, GitLab CI/CD, ActiveMQ, Logstash, OpenSearch, Kibana, Apache Spark and Grafana. - Performance Analysis: Collect, process, and analyze grid-wide benchmark data to evaluate performance scaling across diverse CPU/GPU architectures and server configurations. - Technical Support: Provide technical support and documentation to the WLCG user community.

Your profile

- Advanced Python Development: Solid experience in Python programming,including modular code structure,packaging, distribution, and testing. - Containerisation: Solid understanding of Docker and Apptainer/Singularity, along with familiarity with GPU container execution runtime environments. - DevOps & Infrastructure Automation: Proficiency with GitLab CI/CD pipelines, container registries, configuration management (Puppet), and deployment methodologies. - Linux Systems & Performance Profiling: Strong Linux administration and shell scripting skills. Experience in system metrics tracking (e.g., CPU/GPU utilisation, hardware performance metrics, power monitoring). - Data Analytics Pipelines & Visualisation: Experience with monitoring and data analytics stacks such as OpenSearch/Elasticsearch, Logstash, Kibana, Grafana, or Apache Spark. - Communication & Collaboration: Good technical writing and communication skills to interact with domain experts across the global WLCG collaboration.

Skills

- Programming & Scripting: Python (code, packaging, testing), Bash, Git. - Containerisation: Docker, Apptainer/Singularity. - GPU Computing: NVIDIA Container Toolkit, CUDA, nvidia-smi, AMD ROCm, rocm-smi, GPU profiling. - DevOps: GitLab CI/CD, Puppet, Linux administration. - Monitoring & Data Analytics: OpenSearch/Elasticsearch, Logstash, Kibana, Grafana, Apache Spark, ActiveMQ. - Spoken and written English, with a commitment to learn French.

Eligibility criteria:

- You are a national of a CERN Member or Associate Member State. - You have a professional background in Applied Physics, Software Engineering (or a related field) and have either: - a Master's degree with 2 to 6 years of post-graduation professional experience; - 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.

Job closing date: 17.11.2026 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-January-2027

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-CE-LCG-2026-168-GRAP

Field of work: Information Technologies

Benchmark job: 200020 - Computing Engineer

Global Benefits

- A monthly net stipend of either 6372 or 7004 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

Application timeline

This vacancy was first listed on 27 October 2026, today.

No closing date is published in the source feed for this position. EU vacancies typically remain open for four to eight weeks; check the official vacancy notice for the cut-off date and time.

Last verified against the EU Careers feed on 27 October 2026.

Where to learn more

For headcount, mission, and other open vacancies at CERN see the CERN institution page; for the cost of living, correction coefficient, and other postings in Geneva see our Geneva location page; for related vacancies in the Research field browse our Research domain page.

New to EU careers? Our beginner's guide walks through entry routes, EPSO competitions, and what to prepare. For application logistics see application tips and EPSO competitions.