Cloud DevOps Engineer (f/m/d) @ A1 Competence Delivery Center

A1 Competence Delivery Center is a vital component of A1’s telecommunications business. Acting as an expertise hub, CDC is dedicated to delivering a full range of high-quality IT, network, financial and other services to support A1’s operations across all OpCos, independent of location.

Using the power of being OneGroup and leveraging synergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’ enhancement, paired with job stability.

You will know we are the right place for you, if you are driven by:

• Opportunities to learn and build your career.
• Meaningful work in a stable and fast-paced company.
• Diversity of people, projects, and platforms.
• A supportive, fun, and inspiring place to work.

We are looking for a KubeForge Engineer to join our Kubernetes-focused team. In this role, you will be responsible for operating, maintaining, and optimizing our Kubernetes environments—including OpenShift, RKE2, and vanilla Kubernetes clusters—across the organization. You will play a key role in ensuring high availability, performance, and security of our container orchestration platforms, directly impacting the reliability of services relied upon by the entire A1 Telekom group.

Role Insights

• Administer and maintain production Kubernetes clusters (OpenShift, RKE2, and vanilla Kubernetes) with a focus on availability and performance.
• Deploy, configure, and manage containerized workloads using Kubernetes primitives (Deployments, StatefulSets, Services, ConfigMaps, Secrets).
• Implement and enforce security best practices, including RBAC, network policies, Pod Security Standards, and certificate management.
• Monitor cluster health using tools such as Prometheus, Grafana, and built-in OpenShift observability stack; respond to and resolve incidents.
• Automate operational tasks and cluster management using Infrastructure-as-Code tools (e.g., Terraform, Ansible).
• Collaborate with development teams to support CI/CD pipelines and containerized application deployments.
• Conduct capacity planning, performance tuning, and regular maintenance activities (patching, upgrades).
• Document cluster architectures, operational procedures, and runbooks.

• 3+ years of hands-on experience with Kubernetes administration in production environments.
• Deep understanding of Kubernetes architecture, networking (CNI plugins, Ingress, DNS), and resource management.
• Experience with at least one managed Kubernetes platform (OpenShift preferred, EKS/AKS/GKE acceptable).
• Proficiency in Linux system administration and command-line tools
• Familiarity with monitoring, logging, and observability solutions (Prometheus, Grafana, ELK stack).
• Strong problem-solving skills with the ability to work under pressure during incidents.
• Fluency in English language.

• Valuable experience in one of the fastest-growing and most innovative industries.
• Challenging assignments with strong opportunities for personal and professional growth in a multinational environment.
• Hybrid working model supporting a healthy work-life balance.
• Thousands of online and in-person Learning opportunities for you to grow.
• Modern, open, and friendly work environment that fosters continuous learning and the development of both technical and soft skills.
• Special employee tariffs and a wide range of attractive employee benefits