Posting record
Open 5 days
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- Last checked: still up
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Last checked Nov 4, 2026.
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Upload your resumeWhat it asks of you
- Security clearance required
What the posting discloses
Not stated: Pay, real vacancy, AI screening.
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Skills mentioned
About the role
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 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.
Application Note
We value diversity and welcome all applications – regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.
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