What are you doing next summer?

The call for applications for the 2026 CERN openlab summer student programme is now open!

Each summer, CERN openlab runs a nine-week programme for bachelor’s and master’s students specialising in subjects related to computer science. These students work on cutting-edge projects with our collaborators, gaining hands-on experience with the latest computing technologies.

CERN is the birthplace of the World Wide Web. The laboratory hosts ground-breaking experiments and is at the heart of the Worldwide LHC Computing Grid (WLCG). It is an environment like no other, where dizzying computing challenges abound!

Multiple Learning & Career Growth Opportunities

The CERN openlab summer student programme offers multiple opportunities for learning, innovation, and career growth through hands-on experience with cutting-edge technologies and world-leading experts.

Photo of one of the CERN lecture programme moments in CERN's main auditorium
CERN openlab lightning talks photo with a student presenting
Image of visits to CERN facilities

By joining the CERN openlab summer student programme, you will work with some of the latest hardware and software technologies and see how advanced computing tools are used in high-energy physics.

GIF of someone appling

Are you a B.Sc. or M.Sc. student in computer science, mathematics, engineering, or physics? Do you have a strong computing profile? Will you have completed at least three years of full-time studies at university level by next June? Would you be interested in working on an advanced computing project for nine weeks during the period June-August? If the answer to these questions is yes, you should apply to the CERN openlab summer student programme!

Students participating in the programme work on projects related to specific computing topics, each with a dedicated CERN supervisor. At the end of their nine weeks working with CERN, students produce a report and present their work in a short public presentation.

Duration: 9-weeks

Starting dates: 22 June or 29 June 2026

Allowance: 93 CHF per calendar day

Travel allowance on a lump sum basis at the end of your stay

→ Coverage by CERN’s Health Insurance scheme

Assistance to find accommodation

How and when to apply?

The call for applications for the 2026 CERN openlab summer student programme is now open and will close on Monday 26th of January at 23h59 CET time*.

Documents you will need

You will need the following documents, in English or French, clearly labelled (e.g. “CV”, “Academic transcript”, etc.) and in PDF format to complete your application:

→ CV in English (check CERN CV tips for some advice on how to write your CV).

→ A copy of your most recent official academic transcript (if you download it from your university portal please make sure there is no protection so that we can open it).

→ An academic reference letter (dated less than 12 months).

Recommended, not mandatory:

→ Motivation letter with an indication of the preferred area of work.

Please make sure you have all the documents requested to hand when you start your application on our career portal as they cannot be added after its completion.

More information

Once your application has been submitted, you will receive a confirmation e-mail.

*Application forms submitted after the deadline (January 26 2026 23:59 CET time) will not be taken into consideration.

Students will get a reply to their application by late March/early April 2026. Invitation letters, for visa purposes (if needed), will be sent around May, however you can also use the acceptance letter to start your visa procedure.

Contact us

Contact Form SSP

Meet the 2025 CERN openlab summer students and their projects

Explore some of the innovative projects developed by the 2025 CERN openlab summer students — tackling real R&D challenges in computing, AI, data science, and more at CERN.

More project reports and papers are available on our Zenodo community.

Flash Storage potential in Large-Scale Physics Workflows with Pure Storage
Create a collection of albums in the CERN Document Server from digitized historical photos of particle tracks
Create a collection of albums in the CERN Document Server from digitized historical photos of particle tracks
Energy Analysis for Distributed Machine Learning on HPC with itwinai
Energy Analysis for Distributed Machine Learning on HPC with itwinai
Bridging authentication for services in the Virtual Research Environment
Unified TLS Certificate Automation Using Let's Encrypt
Unified TLS Certificate Automation Using Let’s Encrypt
CERN Digital Twin: CAD-to-USD with Dynamic LOD Rendering
CERN Digital Twin: CAD-to-USD with Dynamic LOD Rendering
AI-Enhanced Operator Assistance for UNICOS Applications
AI-Enhanced Operator Assistance for UNICOS Applications
Next Generation Triggers for CMS: Continual Learning for Decision Trees
Next Generation Triggers for CMS: Continual Learning for Decision Trees
Enhancing the Level-0 Muon Trigger System for the High-Luminosity LHC
Enhancing the Level-0 Muon Trigger System for the High-Luminosity LHC
Scalability Analysis of interTwin AI Workflows and Their Offloading to HPC
Scalability Analysis of interTwin AI Workflows and Their Offloading to HPC

Supervisors’ perspectives: shaping the next generation of experts at CERN openlab

Learn how supervisors from the 2025 CERN openlab Summer Student Programme describe the experience — its impact on students, its value for CERN teams, and the inspiration that comes from mentoring the next generation of experts.

Video with supervisors from the 2025 CERN openlab summer student programme sharing their experience.

Highlights and projects from the 2024 CERN openlab summer students

Explore some of the innovative R&D projects developed by the 2024 CERN openlab Summer Students. These projects span topics such as artificial intelligence, digital twins, data storage, and software optimisation — all contributing to CERN’s computing and research ecosystem.

Discover even more student projects and reports on our Zenodo community.

Two projects: 1) Evaluation of HPC Storage Systems for
HEP Analyses Omniverse; 2) Virtual LHC: Simulating
CERN's Particle Accelerator in NVIDIA Omniverse.
Two projects: 1) Evaluation of HPC Storage Systems for
HEP Analyses Omniverse; 2) Virtual LHC: Simulating
CERN’s Particle Accelerator in NVIDIA Omniverse.
Two projects: 1) Anomaly Detection in Grid Compute Nodes: A Machine Learning Approach Leveraging HEP Benchmark Suite; Enhancing the Testing of CERN’s Linux Software Building Service and Improving Monitoring.
Two projects: 1) Anomaly Detection in Grid Compute Nodes: A Machine Learning Approach Leveraging HEP Benchmark Suite; Enhancing the Testing of CERN’s Linux Software Building Service and Improving Monitoring.
Two projects: 1) A 3D digital twin of the CERN accelerator complex for intervention simulation using NVIDIA Omniverse; 2) Exploring Oracle Cloud for Disaster Recovery.
Two projects: 1) A 3D digital twin of the CERN accelerator complex for intervention simulation using NVIDIA Omniverse; 2) Exploring Oracle Cloud for Disaster Recovery.
Two projects: 1) A Generative Neural Network Models for Fast Particle Shower Simulation in Calorimeters for Geant4; 2) Bringing Object Storage to Kubernetes: A Deep Dive into COSI and Its Integration at CERN.
Two projects: 1) A Generative Neural Network Models for Fast Particle Shower Simulation in Calorimeters for Geant4; 2) Bringing Object Storage to Kubernetes: A Deep Dive into COSI and Its Integration at CERN.
Two projects: 1) Oracle Configuration Discrepancies Check; Enhanced AI LLM-based Paper Review for CMS.
Two projects: 1) Oracle Configuration Discrepancies Check; Enhanced AI LLM-based Paper Review for CMS.
Group photo of the 2024 CERN openlab summer students
2024 CERN openlab summer students.

What’s it like to be a CERN openlab summer student?

Curious about what life is really like as a CERN openlab Summer Student? In these short videos, students share their daily experiences — from working on exciting research projects at CERN to exploring Geneva and the stunning surrounding region after work.

Day in the life of a CERN openlab summer student with Najla Sadek.
Day in the life of a CERN openlab summer student outside of work with Bernard Tam, Amélie Leconte, and Tomáš Ondrejka.
Day on the life of a CERN openlab summer student with Raisa Rahman Richi.

Discover more information on the FAQs page.