Senior DevSecOps Engineer – Identity & Security (REF5699E)

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 recieved 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, Pécs and Szeged and is looking for skilled IT professionals to join its team. About the Position We are looking for a highly skilled Senior DevSecOps Engineer to join a team building Germany's next-generation Identity Provider platform for the national healthcare Telematics Infrastructure (TI), enabling millions of statutory health insurance members to securely access digital healthcare services. As a Senior DevSecOps Engineer, you will own and evolve the cloud platform foundation, focusing on Kubernetes operations , Infrastructure as Code, GitOps practices, CI/CD automation, and modern cloud security controls. Key Responsibilities • Build and operate Kubernetes platforms (Helm, Gardener) on Open Telekom Cloud (OTC) • Manage Infrastructure as Code with Terraform and Terragrunt. • Implement GitOps delivery using ArgoCD. • Operate PostgreSQL (CloudNativePG) and Apache Kafka (Strimzi) on Kubernetes. • Integrate security controls into CI/CD pipelines. • Harden ingress and service-to-service communication including mTLS. • Collaborate with backend, security, QA, and architecture teams. Required Qualifications • 5+ years’ operating Kubernetes in production. • Strong knowledge of Kubernetes, Helm, Terraform, Terragrunt, ArgoCD. • CI/CD, Docker, Linux and scripting (Bash/Python). • Experience with GitOps and Infrastructure as Code. • Security-first mindset and experience with secrets management and