Job Description Project / Role Overview:

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 Tribe Data is responsible for a system landscape of central components of the fixed and mobile network, which encompasses a wide range of different systems and platforms. The T-DAT SDM Lifecycle Squad is responsible for the planning and operation of the central network databases (CNTDB) for all access networks (mobile, fixed-line, M2M), as well as HLR/HSS throughout their entire lifecycle, along with 5GC-relevant systems such as UDM & AUSF. This includes ensuring the stable operation of the SDM platform, as well as the deployment and piloting of the systems in a cloud environment. As part of this job posting, one Solution Designer is being sought for the SDM Lifecycle Squad.

Your Task

At the Telco Hub in Madrid, we are seeking a Solution Designer for the T-DAT SDM Lifecycle Squad. This position is based in Madrid and involves working in cross-country and cross-functional squads, delivering cutting-edge services in the telecommunications sector. The role focuses on the planning and operation of central network databases (CNTDB) for all access networks (mobile, fixed-line, M2M), as well as HLR/HSS throughout their entire lifecycle, along with 5GC-relevant systems such as UDM & AUSF. This includes ensuring the stable operation of the SDM platform, as well as the deployment and piloting of the systems in a cloud environment.

Responsibilities

• End-to-end operation of the frontend systems in the 5G Core domain (UDM, AMF, SMF, NRF) as well as the 4G Core (HSS and DRA) in a cloud environment

• Monitoring of frontend systems in the 5G/4G Core domain with Kibana and Grafana

• Incident resolution and support for problem management

• Checking the cloud cluster status using kubectl and k9s

• Adjusting configurations using GitOps, including change management

• Protocol-level tracing using NetScout and Wireshark

Your Profile

We are seeking a Solution Designer for the SDM Lifecycle Squad with deep expertise in 5G Core network systems, cloud-based infrastructure, and telecommunications operations. The ideal candidate will have strong technical skills in Kubernetes-based environments, monitoring tools, and protocol-level analysis.

Must Have Skills

• In-depth knowledge and experience in the area of 5G Core (UDM, AMF, SMF, NRF)

• Confident use of kubectl

• Confident use of k9s

• Confident use of Kibana

• Confident use of Grafana

• Confident use of GitOps

• Confident use of Netscout

• Confident use of Wireshark

• Experience in YAML is an advantage

• Experience in JSON is an advantage

• Experience in classic and agile forms of cooperation

• Basic willingness to take on on-call duty after thorough training

• Experience with CNTDB

• Experience with UDM+AUSF (AMF, SMF, NRF) in Kubernetes-based Cloud environments

Nice to Have Skills

• Basic knowledge of 4G Core (HSS, DRA)

Tools and Platforms

• CNTDB, UDM+AUSF (AMF, SMF, NRF)

• Kubernetes based Cloud

• kubectl, k9s, Kibana, Grafana, GitOps, Netscout and Wireshark

Additional Information

What do we offer you?

• Work environment & flexibility

  • International, dynamic and collaborative environment
  • T-Social: social initiatives (sports, community, health, ...)
  • Hybrid work model (remote/on-site)
  • Flexible working hours

• Growth & development

  • Customized training: access to Coursera to learn whatever you want, whenever you want
  • Weekly language classes (English, Spanish & German)
  • International Mentoring Sessions & Experience Days

• Compensation & benefits

  • Flexible compensation plan (health insurance, meal vouchers, childcare, transport)
  • Telemedicine
  • 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
  • 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! Please send CV in English. Join our team! T-Systems Iberia will only process the CVs of candidates who meet the requirements specified for each offer.