Senior Site Reliability Engineer - Ceph / On-Prem Cloud Storage

About the role

You will help build, operate and industrialise the storage foundation of our on‑premise cloud platform. As a senior member of a small, experienced team you will own the Ceph clusters that power block, object and file storage for customer workloads, influencing architecture, hardware lifecycle, automation and technical direction.

Key responsibilities

• Design, operate and evolve Ceph clusters for block, object/S3 and file storage, covering CRUSH topology, pool design, erasure coding and performance tuning.
• Own the full storage hardware lifecycle – qualification, burn‑in, firmware, OSD add/drain/replace, node retirement and refresh – and automate these processes.
• Automate provisioning of storage nodes on OpenStack‑managed bare metal using Ironic, RAID, SEDs and VLANs, and manage artefacts such as images and certificates.
• Run upgrades, rebalancing and reconfigurations, and evolve Infrastructure‑as‑Code and GitOps pipelines with Ansible, Terraform and FluxCD/ArgoCD.
• Plan capacity, monitor consumption, and build testing, failure‑injection and observability around performance, durability and security.
• Leverage AI‑assisted engineering tools (LLMs, agentic tooling) for development, testing, incident triage and automation.

Required profile

• Several years of hands‑on experience as an SRE, Storage Engineer or Platform Engineer running production Ceph clusters.
• Deep knowledge of Ceph fundamentals (CRUSH, pools, placement groups, replication, erasure coding, BlueStore, scrubbing, recovery).
• Experience managing storage hardware end‑to‑end, including drives, firmware, controllers and OSD lifecycle.
• Proficiency with Kubernetes as a control plane, operators, custom resources and GitOps, plus solid OpenStack troubleshooting skills.
• Strong Linux and bare‑metal expertise, comfortable with Ansible, Terraform and automation workflows.
• Practical use of LLMs or other AI‑assisted tools in daily engineering tasks.

Required skills

• Ceph (CRUSH, BlueStore, erasure coding, RBD, RGW/S3)
• OpenStack (Ironic, Cinder, Neutron, Nova)
• Kubernetes, operators, GitOps
• Ansible, Terraform, FluxCD, ArgoCD
• Linux, KVM, bare‑metal provisioning
• Go, Python
• Prometheus, Grafana
• Networking (VLAN, BGP)

What we offer

• International, innovative environment with cutting‑edge technologies.
• 32 vacation days (increasing with seniority) and flexible working hours with home‑office options.
• Permanent contract with market‑based compensation and performance bonuses.
• Employer‑funded pension, insurance package and 50 % public‑transport subsidy.
• Annual €400 contribution toward sports activities and corporate benefits discounts.
• Regular company events and free beverages.