HSS-FE - AI Calling

At T-Systems, you will find groundbreaking projects that contribute to social and ecological well-being. We want to welcome new talents like you, who bring fresh ideas, different points of view, who accept challenges and continuous learning, to grow and impact society… All this, in a fun way!

It doesn't matter when or where you work. It's about doing work that matters to move society forward. For this reason, we will do everything possible to ensure that you have every opportunity to develop by offering you a support network, excellent technology, a new work environment and the freedom to work independently. We support you to constantly grow both personally and professionally, so that you can leave a notable mark on society.

T-Systems is a team of around 28,000 people employed around the world, making us one of the world's leading providers of integrated end-to-end solutions. We develop hybrid cloud and artificial intelligence solutions and drive the digital transformation of companies, industry, the public sector and, ultimately, society as a whole.

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.

Skill Requirements:

• understanding of telecommunications protocols: SIP, Diameter, LDAP
• automation and CI/CD: GitLab CI, AWX, TF
• programming languages: Python, Bash, YAML/JSON
• knowledge of cloud-native technologies (containers, Kubernetes, Helm)
• monitoring, logging, and troubleshooting (Prometheus, Grafana, ELK Stack)

Preferred Qualifications:

• 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?

• International, positive, dynamic and motivated work environment.
• Hybrid work model (teleworking/on-site).
• Flexible schedule.
• Continuous training: Preparation for certifications, access to Coursera, weekly English and German classes...
• Flexible compensation plan: health insurance, meal vouchers, childcare, transport assistance...
• Life and accident insurance.
• More than 26 working days of vacation per year.
• Social fund.
• Free service for specialists (doctors, physiotherapists, nutritionists, psychologists, lawyers...)
• 100% of salary in case of sick leave.

And many more advantages of being part of T-Systems!

If you are looking for a new challenge, do not hesitate to send us your CV in English. Join our team!

T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.