DevOps Engineer

Summary

Join Deutsche Telekom IT Solutions, Hungary’s most attractive employer in 2025, as a German-speaking DevOps colleague for a new project offering challenges and growth opportunities using cutting-edge technologies. Enjoy flexible work arrangements, including remote work from home. Leverage your German language skills in daily communication. Contribute to CI/CD pipeline development, Kubernetes cluster management, and system integrations. Collaborate with software vendors and clients, manage services in the Open Telekom Cloud, and support database administration. Work in an agile environment using Jira for task management.

Requirements

• Practical experience in implementing and maintaining CI/CD pipelines with the most common tools: Jenkins, Maven / npm, Bitbucket / Git, Docker, Nexus / Harbor, Prometheus / Grafana, EFK stack, Sonarqube, Dependency-Check, Clair
• Confident Linux knowledge and experience in managing Linux-based systems
• Experience in operating and maintaining Kubernetes clusters, executing Helm-based deployments, and using kubectl to create and modify Kubernetes objects (namespaces, pods, deployments, ingresses, services, etc.)
• Experience in cloud environments, especially using Open Telekom Cloud and other cloud management consoles
• Experience in providing 2nd and 3rd level support to architects, developers, and testers, and using Jira and other workflow tools
• Knowledge of encryption, authentication, and authorization processes (e.g., SSL, Samoa, OpenID Connect), and related tools (e.g., Keycloak), as well as security mechanisms in Kubernetes environments (e.g., mutual TLS)
• Knowledge of relational databases (Oracle, PostgreSQL) and SQL, as well as basic database administration experience
• Experience in an agile software development environment, especially with Java and Angular technologies
• German language skills (spoken and written) [B2]

Responsibilities

• Develop, maintain, and enhance CI/CD pipelines using Groovy and shared library code (implement new features, expand pipeline functionality, integrate and manage tools)
• Operate and configure Kubernetes clusters for integration, system, and acceptance test environments, as well as infrastructure clusters (expand worker nodes, customize configurations)
• Execute Helm-based container image deployments
• Support the integration of external systems (e.g., document management, text editors, subsystems) via VPN and make them accessible in the test environment; collaborate with software vendors and client contacts (subproject: "Umsysteme integration")
• Manage provisioned services in the Open Telekom Cloud environment (Elastic Cloud Server, Load Balancer, Cloud Container Engine, etc.)
• Support the supervision of Oracle and PostgreSQL databases in cooperation with database administrators
• Jira-based task management: processing development and testing requirements, implementing configuration changes, performing error analysis and environment support

Preferred Qualifications

• Windows Server administration knowledge (server setup, network configuration changes, user management)
• DevOps or cloud-based technology certifications (e.g., CKA, or Open Telekom Cloud, AWS, Azure, Google Cloud certifications)
• English language skills
• Participation in international and agile projects
• Experience in a multinational company