Core Backoffice Engineer

Job Description :

• Advanced O& M experience within Ericsson IMS/WCDMA/GSM core network (BSP, AXE & MGW CPP platforms).
• Exceptional troubleshooting skills of traffic-related issues (IMS - CSCF/MTAS/SBC/IP Works/Nels, MSS, MSC, FNR/HLR, STP, and MGW) through adapting existing procedures, methods and tools.
• Advanced understanding of signaling protocols such as SS7/IP, GCP, CAP, MAP, INAP, SCCP, ISUP, BICC, SIP, Diameter, SGsAP and ATM.
• Excellent knowledge of the network topology, its traffic handling capabilities and traffic characteristics.
• Excellent tracing skills using different kind of Protocol analyzers: K15, Masterclaw, Wireshark...
• Should have strong knowledge on STS performance reports.
• Extensive experience in maintaining and improving key performance indicators KPIs: LU, ASR, Paging, HO...Etc
• PLEX knowledge and software tracing is a plus.
• Very good knowledge in all DT related configurations: A, B, IMSI and EOS analysis, Signaling & Traffic Routing/ Nodes integration/ Triggering Tables/AXEPARS
• Very good experience in using different Ericsson tools: Primus, MHWEB, ERICOLL, KCS
• Good ability to interpret network design documents and contribute in preventing mistakes and ensure first-time correct implementation of change requests.
• Excellent skills in integrating new nodes RNC, BSC & VAS nodes (SMSc, ICS).
• HLR data handling experience (including subscriber's profiles & HLR Redundancy).