(Senior) DevOps Engineer (m/f/x)

About this role

Deine Aufgaben: You work in a dedicated team on innovative solutions in a dynamic, product-oriented environment. You take end-to-end responsibility for our infrastructure and DevOps processes — from the Kubernetes platform and CI/CD pipelines through to monitoring, databases, and security. Your tasks: Kubernetes & containers : operation and expansion of our clusters — node setup , upgrades , deployments , troubleshooting , and application testing ; onboarding of development teams onto the platform ; management of Docker- based container solutions and their integration into the existing infrastructure CI/CD & GitOps : maintenance and further development of our GitLab environment , including pipelines , runners , the GitLab Agent for Kubernetes , and the Jira integration ; GitOps-based delivery with ArgoCD or Flux Automation & Infrastructure as Code: provisioning and configuration management with Terraform and Ansible Databases: installation , configuration , maintenance , and troubleshooting of our database systems Observability : setup and operation of ELK / TIG / Grafana Alloy stacks — installation , configuration , dashboards , and alerting Networks & diagnostics: analysis and optimisation of our networks ; log file analysis and systematic root cause analysis , up to and including complex incidents at packet level Security: security checks at application and infrastructure level, plus security gates in the pipeline (SAST, dependency /SCA scanning , secrets detection , SBOM generation , artifact signing ) Dein Profil: A degree in computer science , a STEM subject , or an equivalent qualification gained through several years of professional experience Strong Linux skills and solid networking fundamentals (TCP/IP, DNS, TLS, MTU/ routing ) with proven troubleshooting ability At least 3 years of hands -on Kubernetes experience in production environments , along with container technologies (Docker/OCI) Hands-on depth with GitLab CI/CD or comparable systems , and with GitOps tooling such as ArgoCD or Flux Practical experience automating infrastructure and configuration as code with Terraform and Ansible Excellent analytical and debugging skills , with a structured , detail- oriented way of working A collaborative mindset : you enjoy developing solutions together , document your work , and share knowledge across the team Nice to have: Experience with a specific cloud platform (OCI, Azure, AWS, or GCP) and with migration projects Familiarity with DevSecOps toolchains such as SonarQube , Sonatype Lifecycle, Trivy , or Cosign / Sigstore Warum wir: We are motivated, committed, and believe in the importance of teamwork.