Senior Software Engineer (f/m/d) Managed NFS

IONOS Cloud offers NFS as a managed service, and you develop and maintain it. The product is highly available and redundant, so customer data stays accessible even when a component fails. It runs on Kubernetes and is written mostly in Go. Tasks - Develop and maintain the NFS product for IONOS Cloud. - Build and extend Kubernetes Operators that manage the product's lifecycle. - Design and implement features that keep the service highly available and redundant, including failover. - Improve the product's reliability and replication. - Analyze and resolve complex issues in a highly available, distributed storage setup. - Migrate from legacy components step by step, without breaking existing customers. Qualifications - Expert Go skills and several years of professional development experience. - Experience developing Kubernetes Operators. - Solid knowledge of NFS and SMB/CIFS, plus experience with ZFS and DRBD. - Experience building highly available, redundant systems, including replication, failover and distributed-systems fundamentals (idempotency, retries, consistency, failure handling). - Deep knowledge of Linux, including the kernel, and experience with LinuxKit and VMs (libvirt, QEMU, cloud-init). - Fluency with Git, Docker, shell and CI/CD, including GitOps workflows (for example ArgoCD). - Experience with observability tools (Prometheus, Grafana) to monitor availability and troubleshoot issues. - 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. - Willingness to undergo a security clearance (SÜ-2). 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.