Computing Engineer: S3 Storage & Backup

Builds and operates CERN’s next-generation on-premises backup platform for laboratory services. The engineer integrates disk and tape storage, develops C++ and Linux software, tests and commissions tiered S3-based backup services, and investigates operational failures so cold storage, service migrations and long-term data recovery remain reliable at laboratory scale.

• Integrate backup orchestration with disk and tape storage
• Develop and maintain client and server software in C++ and Linux
• Configure, test, monitor and alert on the new backup system
• Plan migration of existing services to the future backup solution
• Participate in operations, troubleshooting and team support
• Contribute procedures and documentation for the service

• Be a national of a CERN Member State or Associate Member State, subject to the stated Associate Membership ceiling exclusions
• Have a university degree and a highest qualification of either a bachelor’s or master’s degree; applicants with a PhD are not eligible
• Have a maximum of two years of professional experience since graduation in the respective field
• Have never previously held a CERN fellow or graduate contract
• Be experienced in C++ and Python software development on Linux
• Have spoken and written English and commit to learn French

• Experience with S3 object storage
• Experience with Ceph, systems integration, backup systems or tiered storage systems

• Backup Systems
• Storage Systems
• Software Development
• Systems Integration
• Configuration Management
• Testing and Commissioning
• Performance Analysis
• Troubleshooting
• Linux Systems Administration

• C++
• Python
• Linux
• S3 API
• Ceph
• SQL
• Git
• Kubernetes
• Grafana

• Ideal start date: 01/11/2026
• The role has hybrid job flexibility
• Prepare a CV in English or French, a relevant diploma or certificate, and any supporting document for the application