Ceph Software Engineer

Big Science Sweden; Genf; On-site; CHF 80,000 - 110,000; Full time

Job summary

Big Science Sweden is offering an exciting Software Engineer position with CERN, where you will evolve the data storage systems used at the Large Hadron Collider. Engage in hands-on work with Ceph-based solutions and ensure optimal performance across critical storage services.

You will troubleshoot complex issues, optimize architectures for demanding workloads, and improve automation and deployment practices. This role demands strong Linux and systems programming expertise for a unique challenge within a leading laboratory for particle physics.

Qualifications

• Strong Linux expertise and systems programming skills in C/C++, Go, or Rust.
• Ability to troubleshoot complex system-wide issues and optimise storage architectures.
• Experience with distributed storage technology.

Responsibilities

• Contribute to the design, evolution, and operation of large-scale distributed storage services.
• Work hands-on with Ceph-based block, object, and filesystem solutions.
• Ensure high availability and performance across multi-datacenter environments.

Skills

Linux expertise

C/C++

Go

Rust

DevOps practices

Job description

Work with us to evolve the CERN data storage systems used at the Large Hadron Collider (LHC) and at its international partners. CERN is the birthplace of the World Wide Web and one of the world’s leading laboratories for particle physics. Join the Storage and Data Management Group in CERN’s IT Department as a Software Engineer for a unique challenge as the next step in your career. CERN, take part!

The CERN IT Storage and Data Management group operates the core services used by both LHC and non-LHC experiments for data collection, archival, reconstruction, analysis, and global distribution via the Worldwide LHC Computing Grid.

As a Ceph Software Engineer, you will contribute to the design, evolution, and operation of large-scale distributed critical storage services for the CERN cloud and computing infrastructures. You will work hands-on with Ceph-based block, object, and filesystem solutions (including CephFS and NFS integrations), ensuring high availability, performance, and resilience across multi-datacenter environments. Your role will involve troubleshooting complex system-wide issues, optimising storage architectures for demanding workloads such as HPC and AI/ML, and continuously improving automation, deployment, and observability; aligned with modern DevOps practices.

Leveraging strong Linux expertise and systems programming skills (e.g., C/C++, Go, or Rust) you will help evolve the distributed storage technology, while maintaining robust, scalable and secure systems.