MS Core Cloud Specialist CS and IMS-1
Core
Operate, maintain, and evolve Ericsson IMS and Nokia MSS/MSC-S voice core infrastructure across Australian Data Centers, managing outages, upgrades, and capacity expansions.
Role type
Senior Level 3 Network Operations Specialist (IMS/CS Core)
Builds
Voice core infrastructure reliability and capacity for mobile operators
Domain
Telecommunications, IMS, CS Core, VoLTE
Deliverable
infrastructure
Required skills
Ericsson IMS stack (P/S/I-CSCF, MGCF, MGW, HSS, TAS, SBC), Nokia MSS/MSC-S, SIP, Diameter, MAP/CAP, ISUP/SS7, H.248/MEGACO, SIGTRAN, RTP/RTCP, Unix/Linux CLI, Grafana, Kalix, Ericsson ENM, OneFM, ITSM/ServiceNow
Preferred skills
5G VoNR, IMS KPI analysis, root-cause analysis, change management (MOPs)
Technologies
Ericsson IMS, Nokia MSS/MSC-S, Grafana, Kalix, Ericsson ENM, OneFM, ServiceNow
Responsibilities
Operate and maintain Ericsson IMS nodes and Nokia MSS/MSC-S nodes; Perform fault management, incident resolution, and root-cause analysis; Execute software upgrades, patch management, and capacity expansions; Monitor IMS and CS Core KPIs and resolve degradations; Perform configuration management and provisioning; Develop and review MOPs for change management; Collaborate with cross-domain teams; Provide Level 3 support and vendor TAC escalation management.
Seniority
Senior, hands-on IC
