Job ID: 744000160219390 4G/5G Core Network DB Operator (m/f/d) Madrid Professional Regular T-Systems Iberia 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.

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. This position is based at the Telco Hub in Madrid.

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

Must Have Skills In-depth knowledge and experience in 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

Experience in JSON

Experience in classic forms of cooperation

Experience in agile forms of cooperation

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





Nice to Have Skills Basic knowledge of 4G Core (HSS, DRA)

About Us T-Systems is part of the Deutsche Telekom Group, with around 30,000 employees worldwide. We create technology with purpose to generate a positive impact on society. We are looking for curious talent, eager to learn, take on challenges, and contribute ideas that transform our customers' experience.

We trust people: we offer autonomy, continuous support, and a collaborative environment where you can grow without limits. We are one global team, guided by respect, integrity, and a passion for doing better every day.

Benefits Compensation &

benefits

Flexible compensation plan (health insurance, meal vouchers, childcare, transport)

Telemedicine

Life and accident insurance

Social fund

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

Wellbeing & time off

26+ working days of vacation per year

Free access to specialist services (medical, legal, wellness)

100% salary coverage during medical leave

Job Benefits Health &

- Insurance

Flexible compensation plan (health insurance)

Life and accident insurance

Telemedicine

Flexible compensation plan (meal vouchers, childcare, transport)

100% salary coverage during medical leave

Social fund

Work-Life Balance

Hybrid work model (remote/on-site)

Versátil working hours

26+ working days of vacation per year

Professional 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

Lifestyle &

- Wellness

T-Social: social initiatives (sports, community, health, ...)

Free access to specialist services (medical, legal, wellness)

📌 4G/5G Core Network DB Operator (m/f/d) (Madrid)
🏢 T-Mobile US
📍 Madrid