Senior - DevOps Engineer (REF5454L)

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

We are seeking a DevOps Engineer to design, build, and operate secure, scalable, and highly available cloud-native platforms. The role combines infrastructure engineering, CI/CD automation, container orchestration, observability, and security-by-design in regulated and mission-critical environments.

Key Responsibilities

• • Design, build, and maintain cloud and server infrastructure
• • Develop, optimize, and operate CI/CD and GitOps pipelines (GitLab CI, Jenkins, Argo CD)
• • Implement and manage container platforms using Docker and Kubernetes
• • Establish monitoring, logging, alerting, and observability solutions
• • Apply security hardening, IAM, secrets management, and Zero Trust principles
• • Support confidential computing and secure microservices (TEE/VAU, SCONE, Scontain)
• • Integrate and manage HSMs and key management systems
• • Perform incident management, troubleshooting, and cost optimization

Qualifications

Compact Technical Stack

• • Containers & Orchestration: Kubernetes, Docker
• • CI/CD & GitOps: GitLab CI, Jenkins, Argo CD
• • Observability & Monitoring: Prometheus, Grafana
• • Databases & Middleware: PostgreSQL, Kafka, Redis, Nginx
• • Security & Networking: IAM, Zero Trust, VPN, system and network hardening
• • OS & Performance: Linux, Garden Linux, Apache JMeter

Required Qualifications

• • Several years of experience as a Senior DevOps / Platform / SRE Engineer
• • Strong Kubernetes, CI/CD, and cloud security expertise
• • Experience with observability, incident response, and automation
• • Solid Linux system administration skills
• • Strong communication skills in English

Domain Knowledge (Nice to Have)

• • gematik, German e-Health ecosystem
• • Sek-IDP specifications and identity flows
• • Confidential Computing & HSM: TEE/VAU, SCONE, Scontain, Utimaco & Thales HSMs

What We Offer

• • Work on security-critical, high-impact platforms
• • Modern cloud-native and confidential computing technologies
• • Strong engineering culture focused on automation and security
• • International collaboration and flexible working models

Additional Information

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