Senior DevSecOps Engineer – Identity & Security (REF5699E)

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 supply-chain security.
• Fluent English, German is a strong plus

Soft Skills

• Analytical mindset
• Strong communication skills
• Ownership and accountability
• Teamwork and collaboration
• Continuous learning attitude

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

Preferred Qualifications

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

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

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.