Senior Software Engineer (f/m/d) Block Storage Provisioning
Senior engineer at IONOS Cloud who owns block storage provisioning: maintaining and redesigning the next generation of a highly available provisioning workflow on the Linux storage stack (kernel, MD RAID, LVM, NBD) using Go, Kubernetes Operators, VM tooling and observability, based in Berlin with a hybrid model.
- Compensation
- Not disclosed
- Location
- Revaler Straße 28-31, 10245 Berlin
- Work setup
- Hybrid
- Seniority
- Senior
- Employment
- Not specified
- Experience
- Not specified
- Category
- Software engineering
- Posted
Skills
Must have
- Expert Go skills and several years of professional development experience
- Deep knowledge of Linux, including kernel, block storage, software RAID (MD), LVM and network block devices (NBD, RNBD)
- Experience with VMs (libvirt, QEMU, cloud-init), building VM images and developing Kubernetes Operators
- Working knowledge of C, enough to read and debug low-level code
- Fluency with Git, Docker, shell and CI/CD, including GitOps workflows (e.g. ArgoCD)
- Experience with observability tools (Prometheus, Grafana)
- Experience building highly available, redundant systems, including replication, failover and distributed-systems fundamentals (idempotency, retries, consistency, failure handling)
- Affinity to cloud environments and automating infrastructure provisioning
- Daily use of AI coding assistants (e.g. Claude) in development work
- Strong analytical and problem-solving skills; structured, independent way of working in a team
Full description
About IONOS
At IONOS, we don't just manage servers – we shape the digital future for more than 6.2 million customers worldwide with our solutions. As Europe's leading hosting provider and a pioneer in independent cloud solutions, we are building next-generation infrastructure – from sovereign cloud architectures and high-performance GPU clusters to integrated AI automation tools.
What drives us is digital sovereignty for Europe and real impact for small and medium-sized businesses (SMBs) as well as large enterprises. We work in agile teams, rely on transparent structures, and believe that excellence and innovation only emerge through true team spirit.
Ready for your next step? Become part of IONOS and grow with us.
IONOS Cloud runs on highly available, redundant block storage that must be provisioned quickly, reliably and at scale. You own the software behind it and build on the Linux storage stack instead of reinventing it. Your focus is provisioning.
Tasks
- Maintain and improve our existing block storage provisioning
- Design and develop the next generation of our storage provisioning
- Add monitoring and alerting for the provisioning workflow to detect failures early
- Make provisioning robust against failures and safe to retry
- Design and implement provisioning that keeps storage highly available and redundant, including failover
- Analyze and resolve complex issues across the storage stack, from the Linux kernel up to the provisioning layer
- Migrate from legacy components step by step, without breaking existing users
Qualifications
- Expert Go skills and several years of professional development experience
- Deep knowledge of Linux, including the kernel, block storage, software RAID (MD), LVM and network block devices (NBD, RNBD)
- Experience with VMs (libvirt, QEMU, cloud-init), building VM images and developing Kubernetes Operators
- Working knowledge of C, enough to read and debug low-level code
- Fluency with Git, Docker, shell and CI/CD, including GitOps workflows (for example ArgoCD)
- Experience with observability tools (Prometheus, Grafana) to monitor provisioning and troubleshoot issues
- Experience building highly available, redundant systems, including replication, failover and distributed-systems fundamentals (idempotency, retries, consistency, failure handling)
- Affinity to cloud environments and to automating infrastructure provisioning
- Daily use of AI coding assistants (for example Claude) in your development work