ACS Security Engineer

ACS Security Engineer - AI Calling (m/f/d) Full-time position at T-Systems, part of the Deutsche Telekom Group. Project Description At the Telco Hub in Madrid, we are pioneers in merging IT and Telco, building and scaling Telco as a Platform (TaaP) on our proprietary layered cloud. Our mission is to create the best customer experience based on three core principles: - Cloud-based - Harnessing the latest technologies for scalability and performance. - Automated - Driving efficiency through AI, automation, and DevOps. - Sustainable - Building a future-ready, environmentally conscious infrastructure. We are looking for top engineering talent eager to grow technically and professionally in an innovative, dynamic, and collaborative environment. If you are passionate about shaping the future of telecommunications, this is your place Responsibilities - OneiDNS, a cloud-native DNS service for all IMS nodes in fixed and mobile networks, deployed on Kubernetes - VoIP Support Systems, a VMware-based application landscape within the IMS fixed network provisioning chain - We work as a DevOps team, taking full responsibility from design and engineering to deployment and operation. - One of our next major challenges is the development of a new AI Calling system, built on DT Technik's CaaS Kubernetes platform, enabling real-time speech processing and translation within IMS call flows. - To support us on this journey, we are looking for a motivated and technically strong colleague to strengthen our team. Must-have requirements - Good experience with cloud-native technologies and containerized environments - Strong proficiency with Containers and Kubernetes orchestration - Hands-on experience with IMS architectures and call flows (CSCFs, AS, MRF) - Demonstrated experience designing and maintaining CI/CD pipelines (e.g., GitLab CI) - Good knowledge of Python and Bash scripting languages - Structured troubleshooting methodology and root cause analysis capabilities - DevOps mindset with strong ownership mentality - Experience with real-time systems and performance optimization in telecommunications environments - Familiarity with testing and validation frameworks for cloud-native applications Tools & Platforms - SIP and Media debugging tools (Wireshark, sngrep) - Infrastructure as Code and automation tools (Terraform, AWX, FluxCD) - Programming languages (Python, Bash) - Observability and monitoring solutions (Prometheus, Grafana, ELK Stack) - Agile collaboration tools (Jira, Confluence) Nice-to-have requirements - Understanding German would be helpful (optional) - Experience with AI/ML integration in telecommunications or real-time speech processing systems - Knowledge of Deutsche Telekom's CaaS Kubernetes platform or similar proprietary cloud solutions What do we offer you? Work environment & flexibility - International, dynamic and collaborative environment - T-Social: social initiatives (sports, community, health, …) - Customized training: access to Coursera to learn whatever you want, whenever you want - Weekly language classes (English, Spanish & German) - International Mentoring Sessions & Experience Days - Life and accident insurance - Social fund Wellbeing & time off - 26+ working days of vacation per year - Free access to specialist services (medical, legal, wellness) - 100% salary coverage during medical leave T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer. J-18808-Ljbffr