4G/5G Core Network DB Operator (m/f/d)

About the role

T-Systems Iberia is looking for a 4G/5G Core Network DB Operator for its Telco Hub in Madrid, which builds and scales Telco as a Platform on a proprietary layered cloud. The role sits within the Data tribe's SDM Lifecycle Squad, which plans and operates the central network databases (CNTDB) for mobile, fixed-line and M2M access networks, as well as HLR/HSS and 5GC systems such as UDM and AUSF, in a cloud environment.

Key responsibilities

• Operate end-to-end the frontend systems of the 5G Core (UDM, AMF, SMF, NRF) and 4G Core (HSS, DRA) in the cloud
• Monitor frontend systems with Kibana and Grafana
• Resolve incidents and support problem management
• Check cloud cluster status with kubectl and k9s
• Adjust configurations using GitOps, including change management
• Perform protocol-level tracing with NetScout and Wireshark

Required profile

• In-depth knowledge and experience in 5G Core (UDM, AMF, SMF, NRF)
• Confident use of kubectl, k9s, Kibana, Grafana, GitOps, NetScout and Wireshark
• Experience in classic and agile ways of working
• Willingness to take on on-call duty after thorough training
• Nice to have: basic knowledge of 4G Core (HSS, DRA); YAML and JSON experience is an advantage

What we offer

• Hybrid work model and flexible working hours
• Customized training, weekly language classes, international mentoring and experience days
• Flexible compensation plan covering health insurance, meal vouchers, childcare and transport
• Telemedicine, life and accident insurance, social fund and 26+ vacation days