Are you passionate about managing infrastructure at a scale that few in Europe can offer? At IONOS , Europe’s #1 hosting provider, we are looking for a Specialist System Administrator with a leadership profile to join our critical infrastructure team.
This is not a routine maintenance position. You will join at a pivotal moment to work with the technical operations of Stretch (our next-generation web hosting platform) and ensure the operational continuity of an ecosystem encompassing over 500 servers across 28 data centers.
The Challenge: Your Mission
Your primary objective will be to stabilize and grow the infrastructure following the migration of major platforms (such as Telekom) into the IONOS ecosystem. You will be a key player in mitigating operational risks and ensuring hosting services continue to run seamlessly while we rebuild and expand the team in Spain.
Key Responsibilities:
- Platform Management: Build, maintain, and optimize large-scale Linux platforms and Ceph storage clusters.
- Continuity & Support: Provide Level 3 support,



working closely with Level 2 teams and participating in on-call rotations (approx. 1 week every 6) after an initial adaptation period.
- Knowledge Transfer: Collaborate with colleagues in Cologne (Germany) to absorb institutional knowledge of legacy systems and document critical processes.
- Continuous Improvement: Identify performance bottlenecks and propose/implement proactive improvements to the existing architecture.

Your Profile
We are looking for 3 passionates about Open Source , who remain calm under pressure and enjoy solving complex technical puzzles.
- Experience: Minimum of 3 years in Linux systems administration, with at least 1-2 years in team leadership or technical management roles.
- Automation & Configuration: Strong command of configuration management tools ( Puppet, Saltstack ) and orchestration tools ( Ansible, Terraform ).
- Scripting: Advanced proficiency in BASH and Python .
- Cloud & Virtualization: Hands

📌 Specialist System Administrator Lead Administrator: Linux, Storage (España)
🏢 Ionos
📍 España