DevOps Engineer (REF4690D)

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 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

At GSUS, we are shaping the future of real estate management within Deutsche Telekom. GSUS is a corporate real estate management and procurement unit within Deutsche Telekom, not a standalone property developer. Its mission combines asset optimization, cost efficiency, and digital sustainability solutions in service of the company’s overall operations.

We are looking for an experienced DevOps Engineer to join our team, responsible for building and maintaining our scalable, reliable, and automated cloud infrastructure and CI/CD processes. The primary focus of this role will be on platform stability, deployment efficiency, and system monitoring.

Daily Responsibilities

• Infrastructure Management: Provisioning and configuring all resources using Terraform.
• Platform Management: Managing and maintaining our development and production environments.
• Kubernetes Management: Day-to-day administration, scaling, and troubleshooting of Kubernetes clusters.
• CI/CD Pipelines: Developing and maintaining continuous integration and deployment pipelines using GitLab CI.
• Deployment Management: Deploying and updating applications using ArgoCD and Helm charts.
• Monitoring and Logging: Proactively monitoring and logging the entire infrastructure and deployed microservices using the Prometheus, Grafana, Loki, and Alertmanager stack.
• Containerization: Building container images within the Kubernetes cluster using Kaniko.

Qualifications

Must-Have Requirements

• Strong proficiency with Kubernetes and containerization (Docker) technologies.
• Practical experience with Infrastructure as Code (IaC) tools, specifically Terraform.
• Knowledge of CI/CD tools (especially GitLab CI) and GitOps principles (ArgoCD).
• Experience with monitoring systems (e.g., Prometheus, Grafana).
• More than 5+ years of relevant experience in a DevOps role.
• English knowledge min. B2 level (both written and oral)

Nice-To-Have Skills

• Familiarity with cloud security principles and tools.
• Experience with Kubernetes policy enforcement tools (Kyverno, Gatekeeper).
• Knowledge of network security solutions (e.g., Cilium) and Ingress Controllers (e.g., Traefik).
• Experience with secret management solutions (e.g., Azure Key Vault).
• Familiarity with integrating security scanning tools (e.g., Trivy) into CI/CD pipelines.
• Knowledge of the Azure cloud platform.
• German language knowledge

Additional Information

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