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Expert DevOps Engineer

As Hungary's most attractive employer in 2025 (according to Randstad's representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries. DT-ITS received the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pcs and Szeged and is looking for skilled IT professionals to join its team. Job Description

We are looking for confident German-speaking DevOps colleagues for a new project that provides challenges and development opportunities using the latest technologies. If you like flexible work, including remote work, have experience in a similar area, and enjoy using your language skills in everyday communication, we are waiting for your application. Responsibilities: Develop, maintain, and improve CI/CD pipelines in Groovy language using 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) Perform Helm-based container image deployments Support integration of external systems (e.g., invoice management, text editor, subsystems) via VPN and make them available in test environments; collaborate with software providers and client contacts (subproject: "External System Integration") Manage provisioned services in the Open Telekom Cloud environment (Elastic Cloud Server, Load Balancer, Cloud Container Engine, etc.) Support Oracle and PostgreSQL database management in collaboration with database administrators Jira-based task management: processing development and testing requirements, implementing configuration changes, error analysis, and environment support Qualifications

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, performing 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, as well as using Jira and other workflow tools Knowledge of encryption, authentication, and authorization processes (e.g., SSL, Samoa, OpenID Connect), as well as related tools (e.g., Keycloak), and security mechanisms in Kubernetes environments (e.g., mutual TLS) Relational database (Oracle, PostgreSQL) and SQL knowledge, as well as basic database administration experience Experience in agile software development environments, especially with Java and Angular technologies German language skills in speaking and writing [B2] Advantages: Windows Server administration knowledge (setting up servers, modifying network configurations, user management) Certifications related to DevOps or cloud technologies (e.g., CKA, or Open Telekom Cloud, AWS, Azure, Google Cloud qualifications) English language skills Participation in international and agile projects Experience in a multinational company Additional Information

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.