9 days ago
Sofia, BulgariaMid Level
Responsibilities
- Administer and maintain production OpenShift, RKE2, and vanilla Kubernetes clusters with a focus on availability and performance.
- Deploy, configure, and manage containerized workloads using Kubernetes Deployments, StatefulSets, Services, ConfigMaps, and Secrets.
- Implement security practices including RBAC, network policies, Pod Security Standards, and certificate management.
- Monitor cluster health with Prometheus, Grafana, and OpenShift observability tools, and respond to and resolve incidents.
- Automate operational and cluster-management tasks using Terraform and Ansible.
- Collaborate with development teams on CI/CD pipelines and containerized application deployments.
- Conduct capacity planning, performance tuning, patching, upgrades, and regular maintenance.
- Document cluster architectures, operational procedures, and runbooks.
Requirements
- At least 3 years of hands-on production Kubernetes administration experience.
- Deep understanding of Kubernetes architecture, networking including CNI plugins, Ingress, and DNS, and resource management.
- Experience with at least one managed Kubernetes platform; OpenShift is preferred, while EKS, AKS, and GKE are acceptable.
- Proficiency in Linux system administration and command-line tools.
- Familiarity with monitoring, logging, and observability solutions including Prometheus, Grafana, and the ELK stack.
- Strong problem-solving skills and the ability to work under pressure during incidents.
- Fluency in English.
Benefits
- Hybrid working model supporting work-life balance.
- Valuable experience and challenging assignments in a multinational telecommunications environment.
- Strong opportunities for personal and professional growth.
- Thousands of online and in-person learning opportunities.
- Modern, open, and friendly work environment focused on continuous technical and soft-skill development.
- Special employee tariffs and a wide range of employee benefits.
Tech Stack
Categories
About A1 Group
A1 Telekom Austria Group builds and operates mobile networks, fixed broadband, and digital services for consumers, businesses, and wholesale partners across Central and Eastern Europe. Headquartered in Vienna and listed on the Vienna Stock Exchange, it operates in seven countries as part of América Móvil, serving more than 24 million users with offerings spanning voice, internet, TV, IoT, cloud/IT solutions, payment, and roaming.