ACS Security Engineer - AI Calling
T-Systems Iberia · Madrid
Job description
About the role
T-Systems Iberia is looking for an ACS Security Engineer (AI Calling) for its Telco Hub in Madrid, which builds and scales the Telco as a Platform on a proprietary layered cloud. The role sits in the ACS Squad, responsible for the full lifecycle of critical IMS components, and involves a DevOps team taking responsibility from design and engineering to deployment and operation. The team is also developing a new AI Calling system on the CaaS Kubernetes platform for real-time speech processing and translation.
Key responsibilities
- Support the IMS-MRF (Media Resource Function) deployed on Kubernetes
- Support OneiDNS, a cloud-native DNS service for IMS nodes in fixed and mobile networks
- Support VoIP support systems, a VMware-based application landscape in the IMS fixed network provisioning chain
- Contribute to the development of the new AI Calling system
- Work as a DevOps team covering design, engineering, deployment and operation
Required profile
- Good experience with cloud-native technologies and containerized environments
- Hands-on experience with IMS architectures and call flows (CSCFs, AS, MRF)
- Demonstrated experience designing and maintaining CI/CD pipelines (e.g. GitLab CI)
- Structured troubleshooting and root cause analysis, DevOps mindset with strong ownership
- Experience with real-time systems and performance optimization in telecom environments
- Nice to have: understanding of German, AI/ML integration in telecom or real-time speech processing, and familiarity with the CaaS Kubernetes platform
Required skills
- Containers and Kubernetes orchestration
- Python and Bash scripting
- SIP and media debugging (Wireshark, sngrep)
- Kubernetes management (kubectl, Helm)
- CI/CD platforms (GitLab CI, Artifactory)
- Infrastructure as Code and automation (Terraform, AWX, FluxCD)
- Observability and monitoring (Prometheus, Grafana, ELK Stack)
- Testing and validation frameworks for cloud-native applications
What we offer
- Hybrid work model and flexible working hours
- Customized training via Coursera and weekly language classes
- Flexible compensation plan including health insurance, meal vouchers, childcare and transport
- Telemedicine, life and accident insurance, social fund and 26+ vacation days
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Published 1 hour ago
Expires 1 month from now
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T-Systems Iberia
Madrid