Overview Join to apply for the Site Reliability Engineer (SRE) / DevOps – Kubernetes & Cloud Infrastructure (f/m/d) role at IONOS .
IONOS is the largest European provider of cloud infrastructure, cloud services, and hosting solutions. We offer you a long-term perspective in one of the most future-proof industries. Our culture is defined by open structures, flat hierarchies, first-name terms, and a strong team spirit. Thanks to our continuous growth, we are looking for new colleagues to join us. Become part of IONOS and let's grow together!
Your Role
As a Site Reliability Engineer (SRE) in the IONOS Applications team, you will be part of the technical backbone of critical platforms such as IONOS and STRATO Webmail, as well as other web services operated on our Kubernetes platform. You will work alongside experienced colleagues on the design of new resilient and high-performance services and products, even under extreme loads.
Main Responsibilities
Contribute to the evolution of product infrastructure, integrating new services and applications into our cloud and Kubernetes environment.
Ensure the stable and secure operation of our platforms.
Perform in-depth analysis and optimization of distributed and highly scalable environments.
Drive automation using tools such as Terraform, GitLab CI/CD, and ArgoCD, managing infrastructure declaratively and reproducibly.
Analyze and resolve complex issues in distributed systems, contributing to the continuous improvement of the platform.
Develop and maintain monitoring, logging, and alerting solutions (e.g., Prometheus, Grafana, ELK Stack) to proactively detect bottlenecks and sources of error.
Participate in on-call rotations, one week every 4 to 5 weeks.
Collaborate with product development teams to organize joint projects.
Manage incidents end-to-end: initial analysis, ticket creation, resolution, and follow-up through Problem Management.
Have access to up to one day per week for learning and continuous training.
Your Profile
Several years of experience as an SRE or in similar roles (Linux System Administrator, DevOps Engineer, Platform Engineer, Full Stack Developer).
Advanced expertise in Linux, container technologies, and Kubernetes.
Experience with Infrastructure as Code (preferably Terraform), CI/CD pipelines (GitLab CI/CD, GitHub Actions), and Helm charts.
Proficiency in at least one programming or scripting language (Go, Python, Bash) for automation and monitoring tasks.
Experience operating and troubleshooting high-availability production environments.
Knowledge of monitoring, alerting, and log analysis for distributed applications (Prometheus, Grafana, FluentD, ELK, VictoriaMetrics, Icinga).
A proactive, solution-oriented, and independent working style, with the ability to systematically analyze and sustainably resolve technical problems.
Good command of English (spoken and written).
What We Offer
Large-scale projects in one of Europe's biggest hosting companies.
Real technical challenges and the opportunity to work on the unification of platforms within the IONOS Group.
Work with cutting-edge technology in distributed and scalable environments.
Up to one day per week for learning and continuous training.
Seniority level
Mid-Senior level
Employment type
Full-time
Job function
IT Services and IT Consulting and Technology, Information and Media
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Madrid, Community of Madrid, Spain
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