HSS-FE - AI Calling

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 teams operate in cross-country and cross-functional squads, delivering cutting-edge services to Europe's most valued Operator.
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!

The digital society wouldn’t be possible without us. Our employees provide our customers with the best network, with a reliable and secure infrastructure. The basis for tomorrow's innovations. We have the best prospects for the digital future. For you right from the start.

The company Deutsche Telekom Technik GmbH is a 100 percent subsidiary of Telekom Deutschland GmbH and provides the nationwide technical infrastructure of the group. Around 19,000 employees at DT Technik plan, design, build and operate the facilities and systems of the technical infrastructure nationwide on behalf of Telekom Deutschland GmbH. The company implements network projects, operates the network technology and, if necessary, takes over the maintenance of the technical infrastructure.

The Tribe Voice & Messaging is responsible for the design, development, planning, validation and operation of all voice and messaging platforms in DT Technik's fixed and mobile network over their entire lifecycle. We provide innovative, reliable state-of-the-art services to our cellular- and landline-based customers.

The scope of a current program is to bring voice & messaging applications into the cloud. We’ll change the today’s model of separated fixed and mobile systems and merge them. That’s why we want you on our team.

Activity description and concrete tasks:

The Squad NIMS Core / HSS-FE, as part of Tribe Voice & Messaging, is responsible for the complete lifecycle of DT Technik IMS HSS Frontend platforms, enabling and maintaining connectivity between IMS nodes and backend subscriber databases. The Squad uses agile tools and methods as a DevOps team, and is responsible for the design, engineering, development, deployment, and operation of the HSS-FE in close cooperation with the system vendor. One of the next big challenges for the team is to build up a new OneHSS platform based on DT Technik’s CaaS Kubernetes platform as part of DT Technik’s Cloud Booster Program. To accompany us on this challenging journey, we are looking for a committed and motivated colleague to strengthen our team.