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DevOps Engineer (IT-DA-DS-2023-71-LD)
European Council for Nuclear Research (CERN)
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Posted 1 week ago
Job Description

Company Description

At CERN, 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. Find out more on

Job Description


Are you an experienced DevOps Engineer willing to take an active role in the support of the IT data store services used by the entire CERN community? Then join our team and take part in one of the most incredible scientific experiments in the world!

You will join one team of the CERN IT Database and Analytics group responsible for providing data store services to the CERN users. You will be working with several large scale open-source tools (OpenSearch, Hadoop, HDFS, HBase) as well as enterprise storage solutions (NetApp).


As a DevOps Engineer in the Database and Analytics group, your main activities will consist of:

  • Manage multiple Elasticsearch and OpenSearch clusters contributing to the service deployment, configuration, monitoring, disaster recovery, security, and maintenance activities.
  • Design the evolution of the OpenSearch service deployment, keep up-to-date with the latest releases, implement/integrate new functionality, and contribute to upstream when applicable.
  • Take part in the ongoing migration to OpenSearch and support the affected users in this process.
  • Contribute to the operations and development of other services, such as the database storage service.
  • Provide technical mentorship and training to peers and share domain and technical expertise.


Master's degree or equivalent relevant experience in the field of Computing Science or a science discipline (e.g. Physics) with significant computing content or a related field.


The successful candidate should have demonstrated experience in the following fields:

  • Operation and optimization of large scale production deployments, preferably data store solutions.
  • Using, integrating, and contributing to open-source software projects.
  • Search analytics engines such as ElasticSearch and/or OpenDistro and/or OpenSearch.
  • DevOps operations, Linux/Unix systems administration, configuration management, and monitoring.
  • User relations, user support, and user requirements definition.
  • Working in agile project management environments and the scrum methodology in particular.

Additional experience in the following fields would be an asset:

  • Enterprise storage management technologies such as Ceph or NetApp.
  • Container orchestration frameworks such as Kubernetes or Openshift.

Technical competencies:

  • Knowledge of system configuration tools: familiarity with automation tools for infrastructure delivery and management.
  • Knowledge of programming techniques and languages: uNIX shell script, or Python programming is required.
  • Knowledge of operating systems: such as Linux, knowledge of enterprise storage management (SAN or NAS) would be an asset.
  • Capturing and analysis of requirements for ICT systems: ability to collect the needs of users and to manage the different phases of a project.

Behavioural competencies:

  • Solving problems: identifying, defining and assessing problems, taking action to address them
  • Achieving results: delivering high quality work on time and fulfilling expectations
  • Working in teams: building and maintaining constructive and effective work relationships
  • Communicating effectively: delivering presentations in a structured and clear way; adjusting style and content to the audience; responding calmly and confidently to questions Ensuring that information, procedures and decisions are appropriately documented
  • Learning and sharing knowledge: keeping up-to-date with developments in own field of expertise and readily absorbing new information Sharing knowledge and expertise freely and willingly with others; coaching others to ensure knowledge transfer

Language skills:

Spoken and written English is a must. French might be acquired later (once at CERN).

Additional Information

Eligibility and closing date:

Diversity has been an integral part of CERN's mission since its foundation and is an established value of the Organization. Employing a diverse workforce is central to our success. We welcome applications from all Member States and Associate Member States.

This vacancy will be filled as soon as possible, and applications should normally reach us no later than 22.06.2023 at 12:00 AM (midnight) CET.

Employment Conditions

Contract type: Limited duration contract (5 years). Subject to certain conditions, holders of limited-duration contracts may apply for an indefinite position.

These functions require:

  • Residence in the immediate vicinity of the Organization's installations.
  • Work during nights, Sundays and official holidays, when required by the needs of the Organization.
  • Stand-by duty, when required by the needs of the Organization.

Job grade: 6-7

Job reference: IT-DA-DS-2023-71-LD

Benchmark Job Title: Computing Engineer

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