Senior DevSecOps Engineer – Identity & Security

Company Description 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. Job Description 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. Qualifications 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 supply-chain security. • Fluent English, German is a strong plus Preferred Qualifications • Gardener, CNPG, Strimzi Kafka. • OTC / T-Cloud Sovereign. • Istio, Cosign, KICS, kubeconform. • Healthcare digital identity or regulated environment experience. • German language skills. Soft Skills • Analytical mindset • Strong communication skills • Ownership and accountability • Teamwork and collaboration • Continuous learning attitude Technology Stack Cloud & Infrastructure: Kubernetes, Helm Gardener OTC T-Cloud Sovereign Docker Linux Infrastructure as Code Terraform Terragrunt GitOps & CI/CD ArgoCD Git CI/CD Security mTLS Policy as Code Secrets Management Supply Chain Security Data & Messaging PostgreSQL Apache Kafka Automation Bash Python What We Offer • Modern cloud-native technology stack • High-impact healthcare identity platform • Professional growth in DevSecOps and cloud security • International environment and collaborative culture Additional information * Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.