IONOS SE

Senior Software Engineer (f/m/d) Block Storage Provisioning / 1673

Berlin, Germany

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hirly's read of this role

Role family: Engineering
Seniority: Senior
Country: DE
Work mode: On-site / unstated
First seen by hirly: 3 Nov 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

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
Strong analytical and problem-solving skills and a structured, independent way of working in a team

### Benefits

Hybrid working model.
Flexible working hours through trust-based working hours.
At some locations a subsidized canteen and various free drinks.
Modern office space with very good transport connections.
Various employee discounts for activities and products.
Employee events such as summer and winter parties, as well as workshops.
Numerous training and development opportunities.
Various health offers, such as sports and health courses.

Original posting on IONOS SE's site ↗

Listed on hirly, a job board. hirly is not the employer: IONOS SE is hiring for this role.

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