Several parts of the LHC need to be upgraded to reach the performance requirements of the HL-LHC accelerator for the operation of its experiments at high luminosity. In this context, the radiation protection (RP) group provides support in the design and optimization, from the radiological point of view, of HL-LHC to ensure the protection of the personnel and the environment.

After having received training in RP as well as the use of the FLUKA Monte Carlo code for shielding and activation studies, you will perform radiation protection calculations for the upgrade of the LHC accelerator, focusing to areas adjacent to the ATLAS and CMS experiments. The areas contain beamline components that become highly activated and, thus, require careful optimization.

You will participate in project meetings, where you will report regularly results of your studies. Moreover, you will summarize results in reports and technical notes and may present your work in conferences and scientific publications.

Physics Beyond Colliders (PBC) aims to explore the opportunities offered by CERN's accelerator complex and infrastructure to get new insights into some of today's outstanding questions in particle physics through projects complementary to high-energy. In this context, the radiation protection (RP) group provides support in the design and optimization, from the radiological point of view, of new PBC projects to ensure the safety of the personnel, public and environment.

After having received training in RP as well as the use of the FLUKA Monte Carlo code for shielding and activation studies, you will perform RP calculations for PBC projects in CERN’s experimental areas and at the LHC accelerator.  You will collaborate closely with colleagues within the RP group as well as the members of the related PBC projects. In project meetings you will present results and gather information on the facility design and operation that will have to consider in your study.

The skills and/or technologies you should have and/or know: 

Monte Carlo simulation codes for radiation transport, Radiation protection concepts, Programming skills (Python, C++, Fortran), Data analysis, Good interpersonal and communication skills.

Find out more about the RP group here: https://youtu.be/k5lCS_7xZzQ

The operation of accelerator facilities at CERN leads to the production of radioactive material and waste, which we need to radiologically characterize (i.e. determine what radionuclides they contain and assess their activity levels).

Join our Characterization Team, which is part of the Radiation Protection Group. This team has the mandate to develop innovative characterization methodologies by means of cutting-edge research and state-of-the-art technologies.

In particular, you will:

• Develop new characterization methodologies, and
• Apply advanced computational tools for characterization studies.

You will also have a unique opportunity to:

• Apply your skills to concrete, challenging physical problems;
• Develop new competences by collaborating with other CERN physicists and engineers;
• Benefit from an extensive package of online training covering programming, statistics and communication, and
• Present your work in seminars or scientific articles.

The skills and/or technologies you should have and/or know: 
You have competences in at least two domains among probability and statistics, Monte Carlo codes, radiation protection and programming.

As a full-stack developer, you will join a multidisciplinary team of CERN colleagues with diverse technical skills, in collaborative projects. You will exchange with experts in different scientific domains (such as physicists, engineers, doctors, virologists and epidemiologist ) and Organizations (e.g. WHO, CEN).

In particular, you will coordinate the development of CERN Airborne Model for Indoor Risk Assessment (CAiMIRA) and support the implementation of the Kryolize tool. In detail, you will:

• Participate in co-development of a new interface of CAiMIRA with WHO;
• Develop new back- and front-end features, based on Python, JS and HTML;
• Provide software maintenance;
• Configure and use CI/CD pipelines;
• Propose improvements to the current architecture;
• Contribute to documentation;
• Contribute to the technical implementation of Kryolize; 

You will be involved in pioneering work associated with public health and technical risks, as well as participating to ambitious projects with a global impact.

The skills and/or technologies you should have and/or know: 

• Degree in IT;
• Full stack Python developer and the Scientific Python stack (numpy, scipy, matplotlib, pandas);
• Original thinker & problem solver;
• Capability to work in an multidisciplinary team.

You will join a team of experts in Exascale technologies and you will work as a computing engineer in the EU funded project SYCLOPS (Scaling extreme analYtics with Cross-architecture acceleration based on OPen Standards) under the Horizon Europe framework with focus on the standardization and adoption of RISC-V for AI and analytics acceleration, and the emergence and growth of SYCL as a cross-vendor, cross-architecture, data parallel programming model for all types of accelerators, including RISC-V.

The skills and/or technologies you should have and/or know: 

• Knowledge of C/C++ and Python programming;
• Experience in programming heterogeneous architectures, unified programming models and portability libraries;
• Experience with large datasets.

https://openlab.cern

You will join a young team of professional software developers. Within the team, you will be the main contributor carrying on the analysis, design and implementation of some of the software tools for the management of CERN Electrical safety.

In the frame of this project, you will:

• Design and develop web applications for the management of electrical inspections;
• Participate to the improvement, maintenance, support of existing Heath, Safety and Environment related software;
• Participate to the team's activities such as code reviews and recurrent technical knowledge sharing;
• Contribute to the existing documentation.
• Work in close collaboration with the final users to gain a clear understanding of their working procedures and specific needs to build software adapted to their requirements.

You will have the opportunity to receive training in order to improve your technical knowledge in SpringBoot, React and other technologies required for the development of the software.

The skills and/or technologies you should have and/or know: 

Full stack development with Java17, SpringBoot, JavaScript, TypeScript, React, OpenShift4, Oracle, Git, CI/CD tools, test automation

https://hse.cern/services-support/safety-computing

Curious about the infrastructure used for physics analysis at CERN? Do you have experience in Kubernetes? Join CERN's Authentication and Authorisation team where you will be a key player in testing, deploying and improving the new authorisation system for the physics computing infrastructure (Worldwide LHC Computing Grid).

You will:

• Work in CERN's Identity and Access Management team, which is responsible for developing and deploying the authentication, authorisation and resource management systems for CERN;
• Collaborate with computing experts from CERN's largest experiments to identify requirements;
• Test and deploy the new authorisation system (INDIGO IAM which uses OAuth2) on Kubernetes;
• Integrate the system with CERN IT services, such as monitoring;
• Optimise system performance;
• Develop code improvements;
• Produce service documentation;
• Participate in establishing security policies and specifications.

The skills and/or technologies you should have and/or know: 

• Kubernetes application development;
• Programming e.g. Java or C++;
• Service performance testing & optimisation would be a plus;
• Specifications or policies contributions would be a plus;
• Security interest would be a plus.

In the framework of the Future Circular Collider feasibility study (FCC), a concept for the management of excavation material (7 to 8 Million cubic meters) is expected to be delivered for 2025.

We are looking for a multidisciplinary engineer who will be involved in the following activities:

• Evaluate the suitability of the excavated material for different reuse and disposal pathways (on the basis of existing geotechnical, mineralogical and chemical analyses);
• Contribute to the research, technical evaluation and testing of the different reuse and disposal pathways for the excavation material;
• Contribute to the interdisciplinary studies of the logistics for the temporary storage, transport and disposal of the excavation material;
• Act as link person with the civil engineering FCC team for the requirements related to the management of excavated materials;
• Contribute to the finalization of the Excavation material management plan.

The skills and/or technologies you should have and/or know: 

Material engineering, excavation material management regulation, geology and/or mineralogy, interdisciplinary approach, strong organisation and communication skills, ability to work autonomously.

The IT-SD Group operates the core services used by LHC and non-LHC experiments to collect their data, to enable data archival, reconstruction and analysis and to distribute them to archiving and computing facilities around the world (Worldwide LHC Computing Grid). You will join the operations team, which is responsible to deliver dependable data and storage service to the laboratory and their scientific activities.

You will:

• Work with a number of technologies ranging from software defined disk technologies, high-level operations of disk servers (Linux) and large-scale data management for our multi-PetaByte farms;
• Be responsible for the execution of maintenance operations, participation in the day-by-day operations, incident response and user support.

The skills and/or technologies you should have and/or know: 

Linux administration, Python, Shell scripting, CI/CD tools, Configuration management tools.
 

You are an engineer interested in helping to reduce the energy consumption of cooling & ventilation plants at CERN. On top, you've experience in the design of control systems and have produced physical models for dynamic simulation in software like Matlab/Simulink. 
In collaboration with the group's controls section, you shall be able to propose, validate and compare various control methods in order to assess their performance and impact on the system's energy consumption. In a later stage, you may be required to develop the PLC code for the selected solution(s) and deploy in production plants.

The skills and/or technologies you should have and/or know: 

• Systems modelling; experience with simulation software (e.g. EcosimPro, Matlab/Simulink or similar);
• Controller design;
• Python.