Site Reliability Engineer (f/m/d)

1&1 IONOS SE; Karlsruhe; Hybrid; EUR 70.000 - 100.000; Vollzeit

Benefits dieser Stelle

Hybrid work

Flexible hours

Canteen subsidy (at some locations)

Modern office with good transport

Employee discounts

Team events & training

Health & wellness programs

Development opportunities

Zusammenfassung

1&1 IONOS SE is seeking a Site Reliability Engineer to strengthen the Application Hosting Team, focusing on Kubernetes-based infrastructure, automation, and high-availability services. You will help design, build, and operate scalable platforms for Managed Nextcloud, Nextcloud Workspace, and IONOS GPT, with emphasis on performance and resilience.

You will drive automation with Terraform, GitLab CI/CD, and ArgoCD, implement robust monitoring and logging, and resolve complex distributed-system

Qualifikationen

• Proven experience as Site Reliability Engineer or similar in Linux and Kubernetes environments.
• Strong Linux, container tech, and Kubernetes knowledge.
• Experience with Infrastructure as Code (Terraform) and CI/CD pipelines (GitLab CI/CD, GitHub Actions).
• Proficiency in at least one programming/scripting language (Go, Python, Bash) for automation.
• Experience with monitoring/logging/alerting in distributed production environments (Prometheus, Grafana, ELK, etc.).

Aufgaben

• Further develop the infrastructure/platform for products and integrate new services into Kubernetes and Cloud infrastructure.
• Ensure stable, secure operation with proactive optimization of distributed systems.
• Automate infrastructure declaratively using Terraform, GitLab CI/CD, and ArgoCD.
• Troubleshoot complex issues in distributed systems and drive platform improvements.
• Develop and maintain monitoring, logging and alerting solutions to identify bottlenecks and errors proactively.

Kenntnisse

Linux proficiency

Kubernetes

Infrastructure as Code

CI/CD pipelines

Programming/scripting

Tools

Terraform

GitLab CI/CD

GitHub Actions

Helm Charts

Prometheus

Grafana

ELK stack

VictoriaMetrics

Icinga

Jobbeschreibung

Tasks

As a Site Reliability Engineer (SRE) in our Application Hosting Team, you form the technical backbone of our product platform for Managed Nextcloud, Nextcloud Workspace, IONOS GPT, as well as other web services that we operate on our Kubernetes platform. Together with experienced colleagues, you design new services and products that remain performant and resilient even under the highest load.

Tasks

• Your main area of focus is the further development of the infrastructure/platform for our products, as well as the integration of new products/web services into our Kubernetes and Cloud infrastructure.
• You are responsible for the stable and secure operation of our product platform. Your expertise is in demand when it comes to in-depth analysis and optimization of our primarily containerized and Kubernetes-based application infrastructure.
• You live automation. Using tools like Terraform, GitLab CI/CD, and ArgoCD, you provision and manage our entire infrastructure declaratively and reproducibly.
• You analyze and resolve complex issues in a distributed system landscape and work on the continuous improvement of our platform.
• You develop and maintain our monitoring, logging, and alerting solutions (e.g., using Prometheus, Grafana, ELK stack) to proactively identify bottlenecks and sources of error.

Qualifications

• You have several years of experience as a Site Reliability Engineer or in a related role (Linux System Administrator, Platform Engineer, DevOps Engineer, Full Stack Developer) in a Linux and Kubernetes environment.
• Strong knowledge and several years of experience using the Linux operating system, container technologies, and specifically Kubernetes.
• You have experience with Infrastructure as Code (preferably Terraform), CI/CD pipelines (e.g., GitLab CI/CD or GitHub Actions), and using Helm Charts.
• You can confidently develop in at least one programming or scripting language (e.g., Go, Python, Bash) to solve automation and monitoring tasks, and you may already have initial experience building Operators.
• Experience operating and troubleshooting highly available and distributed production environments, including monitoring, alerting and log analysis of distributed applications (e.g., Prometheus, Grafana, FluentD, ELK, VictoriaMetrics, Icinga). 
  
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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.