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

IONOS SE; Berlin; Híbrido; EUR 90.000 - 130.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid working model

Flexible hours

Canteen subsidy

Modern office with good transport

Employee discounts

Team events

Training and development opportunities

Health programs

Descripción de la vacante

IONOS SE is seeking an expert Go developer focusing on provisioning for block storage. You will work across the Linux storage stack to design robust, scalable provisioning that remains highly available and repairable through failure scenarios.

The role includes adding monitoring, alerting, and automation to ensure reliable operation in production. You will collaborate on VM image building, cloud-init, and Kubernetes Operator development, with strong emphasis on idempotent, distributed system

Formación

• Go programming with several years of professional experience.
• Strong Linux kernel and block storage knowledge (MD/LVM/NBD).
• Experience with virtualization (libvirt, QEMU) and VM image creation.
• Familiarity with Kubernetes Operators and cloud init workflows.
• Proficient in C for reading and debugging low-level code.
• Fluent with Git, Docker, and CI/CD pipelines, incl. GitOps (ArgoCD).
• Experience with observability tools (Prometheus, Grafana).
• Knowledge of highly available, distributed systems concepts like idempotency and retry logic.

Responsabilidades

• Maintain and improve our block storage provisioning.
• Design and develop the next generation of storage provisioning.
• Add monitoring and alerting for provisioning workflows to detect failures.
• Make provisioning robust against failures and safe to retry.
• Design provisioning that keeps storage highly available with failover.
• Analyze and resolve complex issues across the storage stack (Linux to provisioning).
• Migrate from legacy components step by step without breaking users.

Conocimientos

Go programming

Linux kernel knowledge

Kubernetes Operators

C programming basics

Git

Docker

CI/CD

GitOps (ArgoCD)

Observability (Prometheus Grafana)

Distributed systems concepts

Cloud automation

AI coding assistants

Herramientas

libvirt

QEMU

cloud-init

Kubernetes

ArgoCD

Prometheus

Grafana

Descripción del empleo

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.