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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Specialist System Administrator Lead Administrator: Linux, Storage & Automation. - **Company:** Ionos - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Bash Shell, Cloud Computing, Continuous Integration, Data Centers, Linux, File Systems, HAProxy, Monitoring of Systems, Internet Hosting Service, Python (Programming Language), PostgreSQL, Linux System Administration, MySQL, Routing, Open Source Technology, OpenStack, Ansible, Prometheus, SQL Databases, TCP/IP, Virtualization Technology, Web Hosting Services, Web Services, Workflow Management Systems, Ceph (Software), Scripting, Load Balancing, Computer Network Technologies, Saltstack, Grafana, Kubernetes, Infrastructure Automation Frameworks, ZFS File System, Puppet, Terraform, Docker, Legacy Systems - **Published:** August 5, 2026 - **Apply:** https://www.buscojobs.com.es/specialist-system-administrator-lead-administrator-linux-storage-automation-en-madrid-ID-365521036 ## About the Role 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-on experience with OpenStack . Observability: Proficiency with monitoring tools such as Prometheus and Grafana . Desired Requirements Networking knowledge (TCP/IP v4/v6, load balancing with HAProxy, routing). Experience with SQL databases (MySQL, PostgreSQL). Familiarity with containers ( Docker, Podman, Kubernetes ) and CI/CD pipelines. Experience with ZFS file systems. ## Description Are you passionate about managing infrastructure at a scale that few in Europe can offer?AtIONOS , Europe's #1 hosting provider, we are looking for aSpecialist System Administratorwith 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 ofStretch(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 MissionYour 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 andCephstorage 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 ProfileWe are looking for 3 passionates aboutOpen 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 inBASH and Python .Cloud & Virtualization:Hands-on experience withOpenStack .Observability:Proficiency with monitoring tools such asPrometheus and Grafana .Desired RequirementsNetworking knowledge (TCP/IP v4/v6, load balancing with HAProxy, routing).Experience with SQL databases (MySQL, PostgreSQL).Familiarity with containers ( Docker, Podman, Kubernetes ) and CI/CD pipelines.Experience withZFSfile systems.Global Scale:You will work on one of the largest and most advanced hosting platforms in Europe.The volume of data and traffic you will handle is rarely found in other companies.Real Impact:Your work will directly impact the stability of thousands of web services and the success of critical corporate-level migrations.Learning Culture:We value curiosity.You will have access to continuous training, tech talks, and an environment that fosters professional growth.Stability and Future:You will be part of a long-term growth strategy in Spain, enjoying the benefits of belonging to a solid, industry-leading group.Are you ready for the challenge?Apply now and help shape the technical future of IONOS.#J-*****-Ljbffr ## Related Videos - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [My journey into DevOps world - How it all started!](https://www.wearedevelopers.com/videos/545-my-journey-into-devops-world-how-it-all-started) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)