The European Organization for Nuclear Research, physicists and engineers are probing the fundamental structure of the universe. Using the world's largest and most complex scientific instruments, they study the basic constituents of matter - fundamental particles that are made to collide together at close to the speed of light. The process gives physicists clues about how particles interact, and provides insights into the fundamental laws of nature.
Responsibilities :
The BE Department, responsible for the beam generation, acceleration, diagnostics, controls and performance optimization for the LHC and its injector accelerators.
The CSS Group, responsible for providing and supporting the controls software and infrastructure used to operate and maintain these particle accelerators 24 hours a day.
The ISA Section, a dynamic and quality-oriented agile team, responsible for the CERN Accelerator control system computing infrastructure and system administration.
Perform system administration tasks for the Linux computers connected to the accelerator control system (control room consoles, data centre servers, real-time embedded platforms and virtual machines).
Communicate with end-users to understand their needs and help translate these into appropriate solutions.
Investigate, diagnose, and resolve operational problems in collaboration with end-users ranging from equipment specialists to operations teams.
Participate actively in the strategic evolution of the accelerator control system infrastructure towards container technology hosted upon Kubernetes.
Provide containerisation mechanisms and tools for software development teams (base images, registry, security aspects).
Contribute to the planning and migration of the infrastructure from bare metal to a clustered container orchestration platform.
Advance, improve and upgrade the control system Kubernetes platform and associated services to follow technology evolution and adapt to the needs of users of the controls environment.
Collaborate closely with engineers from the IT Department responsible for the general CERN IT infrastructure.
Mentor and supervise junior engineers.
Requirements :
Master's degree or equivalent relevant experience in the field of Computer Science or a related field.
Linux operating system.
High-performance and high-availability commercial server platforms.
Container technologies (such as Docker and Dodman).
Administration of an on-premise Kubernetes infrastructure and associated services (e.g. Argo CD, PaciCorp Vault and Prometheus) with an awareness of architectural concerns and management of the lifecycles of the involved services, including upgrades and integration with network storage.
Diagnostic and monitoring solutions for the aforementioned technologies, with the awareness of security aspects to be considered in their deployment.
Configuration management tools such as Ansible, Puppet, or similar and a version control system such as Git.
Interest in software failure analysis, diagnostics, and validation in a Linux environment.
Knowledge of operating systems: Linux-based support and maintenance.
Architecture and design of ICT systems: control & data acquisition system, distributed? Applications and services.
Knowledge of programming techniques and languages: system configuration, monitoring, Python and Java environments.
Knowledge of communication technologies and protocols.
Installation, operation and maintenance of control systems.
