
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.
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 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 Voice & Messaging (T-VM) organizational unit (Tribe) within Deutsche Telekom Technik GmbH bears overall responsibility for all voice and messaging platforms in the fixed and mobile networks of Deutsche Telekom Technik throughout their lifecycle. The platforms managed by T-VM form the basis for a large part of Telekom Deutschland's core business; therefore, our mission is to simultaneously ensure the success-critical factors of stability, quality, innovation, and efficiency. The ACS Squad (Announcement-, Control & Supportsystems) is responsible for the full lifecycle of critical IMS components within DT Technik.
Activity description and concrete tasks:
IMS-MRF (Media Resource Function) deployed on Kubernetes
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.
Skill Requirements:
Tools & Platforms:
Preferred Qualifications:
What do we offer you?
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.

Your digitalization partner with industry expertise
With locations in more than 26 countries and over 26,000 employees (2024), T-Systems is one of the leading providers of digital services in Europe. The Deutsche Telekom subsidiary is headquartered in Germany and has a presence in Europe as well as in selected core markets and strategic production locations. T-Systems can provide a global production and supply chain to companies operating worldwide.
T-Systems offers integrated end-to-end IT solutions, driving the digital transformation of companies in all industries and the public sector. T-Systems’ focus industries are automotive, the public sector, healthcare and transport. For these areas, T-Systems develops industryspecific solutions – so-called vertical applications.
The comprehensive portfolio of services includes secure operation of traditional IT infrastructures, migration to private cloud and public cloud environments of hyperscalers, as well as management of hybrid and multi-cloud infrastructures. T-Systems integrates customized platforms, industry-specific applications and innovative technologies such as artificial intelligence (AI), big data and blockchain into these infrastructures. To achieve this, the Telekom subsidiary works closely with leading global technology partners. The end-to-end services also include state-of-the-art security solutions and data protection in accordance with DSGVO requirements.
T-Systems pursues a holistic approach: consulting (advisory) and solutions from the areas of digital, cloud services and security are offered from a single source.
Become one of us: https://www.t-systems.com/de/en/company/careers
Imprint: https://www.t-systems.com/de/en/imprint