Your Task Join the Mobile DNS Squad responsible for the end-to-end lifecycle, operation and evolution of Deutsche Telekom's critical DNS infrastructure. You will work closely with suppliers, DevOps engineers and operations teams to design, integrate, deploy, monitor and troubleshoot the Mobile DNS platform.

Key Responsibilities

- Implement and operate physical, virtualized and containerized systems
- Analyze, troubleshoot and document incidents and system malfunctions
- Improve automated failover, deployment and disaster recovery processes
- Develop and optimize automation scripts using Ansible, Bash, Perl and Python
- Implement changes across test, reference and production environments
- Develop monitoring and data analysis capabilities
- Collaborate with cross-functional teams to ensure service reliability and resilience

Your Profile





We are looking for a qualified DNS Infrastructure Engineer with strong technical expertise in DNS technologies, automation, networking, and Linux administration to support Deutsche Telekom's critical Mobile DNS infrastructure.

Must Have Skills

- Experience with DNS technologies including BIND, PowerDNS, DoH, DoT, and DoQ
- Strong Ansible automation experience
- Knowledge of IP networking and routing
- Experience with LAN/WAN technologies
- Wireshark troubleshooting skills
- Experience with monitoring tools including Grafana, CheckMK, and Telegraf
- Linux administration experience, particularly Red Hat 9 and SUSE 15
- Strong analytical skills
- Strong problem-solving capabilities
- Quality awareness
- Experience working in agile teams
- English language proficiency

Nice to Have Skills

- Telecommunications industry experience

📌 DevOps Engineer (m/f/d) Mobile DNS (Madrid)
🏢 T-Systems
📍 Madrid