T Hub - DevOps Engineer – Telco Cloud / ACS Test Automation

Technologies we use

About the project

Your responsibilities

• Analyze and design functional and technical requirements for Voice & Messaging systems, platforms, and AI services
• Develop, maintain, and automate testing for cloud‑native IMS components
• Operate and improve Kubernetes‑based telco platforms in a DevOps setup
• Support and automate CI/CD pipelines to ensure high quality and fast delivery
• Perform structured troubleshooting and root cause analysis
• Participate in on‑call duty and call‑out procedures for critical systems
• Actively contribute to the development of a new AI Calling system, enabling real‑time speech processing and translation within IMS call flows

Our requirements

• +5 years of experience gained on a similar position
• Strong experience with cloud‑native technologies, containers, and Kubernetes
• Experience with IMS architectures and call flows (CSCFs, AS, MRF)
• Solid background in CI/CD pipelines and test automation
• Good knowledge of Python and Bash
• Strong analytical skills and a structured approach to problem solving
• DevOps mindset with ownership and accountability
• Ability to work effectively in agile, cross‑functional teams

Optional

• Basic understanding of German (optional)

What we offer

• Work on business‑critical telco platforms at the core of Deutsche Telekom’s network
• Be part of an innovative journey toward cloud‑native and AI‑driven solutions
• High level of technical ownership and real impact on large‑scale systems
• International, collaborative, and agile working environment

Benefits

Technologies & Tools You will work with:

• Containers & Cloud: Kubernetes (kubectl, Helm), VMware
• CI/CD: GitLab CI, Artifactory
• Automation: Terraform, AWX, FluxCD
• Programming / Scripting: Python, Bash
• Observability: Prometheus, Grafana, ELK
• IMS & VoIP: SIP & Media debugging (Wireshark, sngrep)
• Agile tools: Jira, Confluence

Systems You Will Work With

• IMS-MRF (Media Resource Function) deployed on Kubernetes
• OneiDNS – a cloud‑native DNS service for IMS nodes in fixed and mobile networks
• VoIP Support Systems within the IMS fixed network provisioning chain