Senior DevSecOps Engineer – Identity & Security

Stack

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

Requirements

• ▹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

Nice to have

• ▹Gardener, CNPG, Strimzi Kafka
• ▹OTC / T-Cloud Sovereign
• ▹Istio, Cosign, KICS, kubeconform
• ▹Healthcare digital identity or regulated environment experience
• ▹German language skills

Soft skills

What we offer

• ▹Modern cloud-native technology stack

About the company

Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group, ranked Hungary's most attractive employer in 2025 according to Randstad's survey. The company provides a wide portfolio of IT and telecommunications services with more than 5,300 employees, serving large customers and corporations in Germany and other European countries. It has offices in Budapest, Debrecen, Pécs, and Szeged.