Voice Core Operations Specialist

Vedi l’offerta su Go Lavoro: golavoro.it/annuncio-lavoro/78kl3l

Role purpose
Second line operations of core IMS networks in a multi‐vendor environment. The role focuses on preventive and corrective troubleshooting to maintain the quality, continuity, and restoration time of core IMS network elements. The candidate will collaborate with first line operations to develop procedures for fault analysis, perform data configuration, software roll‐outs, and support integration activities.
Key accountabilities and decision ownership
Handle incident troubleshooting, vendor support escalation, and restore core network service and performance.
Execute proactive maintenance activities to prevent incidents and continuously optimise the network (e.g., daily walkthroughs and health checks for core CS components).
Manage planned work activities, network rollouts, software upgrades, and parameter changes in the core CS network to ensure quality of service and avoid regression.
Introduce and manage cutting‐edge technologies, including vendor and on‐the‐job training.




Perform acceptance testing and integration/configuration of new network elements in the core CS network.
Share knowledge to elevate the technical skills of other teams involved in deployment and operations activities.
Key performance indicators
Putting the customer first.
Managing a changing environment.
Delivering results.
Communicating for impact.
Core competencies, knowledge and experience
Strong knowledge of core network principles for 2G/LTE: MSS, MGW, SBC, CSCF, TAS, ENUM, VoLTE.
Good knowledge of core network protocols: SIGTRAN, ISUP, CAMEL, INAP SIP, Diameter, TCP/UDP, S1AP, GTP/GTPv2, MAP, BSSAP.
Experience in trace analysis (Wireshark, Tektronix, network element traces).
Understanding of NFV framework, VNF context and technologies (virtualisation layer, VIM, VNF managers) and related protocols (MPLS, IPSEC tunnel).
Automation skills with common languages/tools (Python, PowerShell, Ansible, scripting).
Unix/Linux OS administration skills.
Team‐working orientation and good comm

Vedi l’offerta su Go Lavoro: golavoro.it/annuncio-lavoro/78kl3l