Senior 5G Core HLR/HSS/UDM Architect

OXIO is seeking a senior core network engineer to design, operate and optimize 2G-5G subscriber data platforms across HLR, HSS, UDR, and UDM. You will manage provisioning workflows and implement Diameter-based interfaces while monitoring KPIs.

You will lead incident management, perform routine maintenance, and coordinate with vendors. Cloud-native deployments with Kubernetes/OpenShift are preferred. On-call duties and roaming configurations are part of the role.