Job ID: 744 G/5G Core Network DB Operator (m/f/d) Madrid Professional Regular T-Systems Iberia
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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. xhfqzwm 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 (Madrid)
🏢 T-Mobile US
📍 Madrid