Site Reliability Engineer (f/m/d) Application Hosting/TOSAAS

IONOS EN; Karlsruhe; Hybrid; EUR 70.000 - 100.000; Vollzeit

Benefits dieser Stelle

Hybrid working model

Flexible working hours

Canteen subsidy

Zusammenfassung

IONOS is seeking a Site Reliability Engineer to strengthen the Application Hosting Team. You will help scale and secure our cloud infrastructure, focusing on Kubernetes-based platforms and automation to improve reliability and performance.

The role emphasizes building resilient systems, effective monitoring, and cross-team collaboration in a hybrid work model across German locations.

Qualifikationen

• Several years of experience as Site Reliability Engineer or in a related role (Linux, Kubernetes).
• Strong knowledge of Linux, containers, and Kubernetes.
• Experience with Infrastructure as Code (Terraform) and CI/CD (GitLab CI/CD or GitHub Actions) and Helm.
• Programming/scripting in Go, Python, or Bash for automation.
• Experience with monitoring/logging in distributed systems (Prometheus, Grafana, ELK).
• German and English proficiency.

Aufgaben

• Further develop the infrastructure/platform for products and integrate new services into Kubernetes/Cloud infra.
• Ensure stable and secure operation of the product platform and optimize Kubernetes-based systems.
• Automate infrastructure with Terraform, GitLab CI/CD, and ArgoCD.
• Diagnose and resolve complex issues in distributed systems and improve the platform.
• Develop and maintain monitoring, logging and alerting (Prometheus, Grafana, ELK, etc.).

Kenntnisse

Linux proficiency

Problem solving

German & English

Tools

Kubernetes

Terraform

GitLab CI/CD

ArgoCD

Helm Charts

Prometheus

Grafana

ELK stack

VictoriaMetrics

Icinga

FluentD

GitHub Actions

Go

Python

Bash

Operators

Jobbeschreibung

At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.

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).
• You have a proactive, solution-oriented, independent way of working, and the ability to systematically analyze and sustainably solve complex technical problems.
• Good German and English language skills are required.

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.

About IONOS

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a ‘one-stop shop’ for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve.

We value diversity and welcome all applications - regardless of,for example, gender, nationality, ethnicorsocial origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.