CS and IMS Core Subject Matter Expert

Join our Team

About this opportunity:

We are now looking for CS&IMS Core SME who will handle and operate on a large scale "CS & IMS network and CS & IMS network Infrastructure" that will be responsible for the coordination, management, execution, and reactive maintenance activities that require a higher level of support than offered by the 2nd level Operations, plus creating internal knowledge bases sessions for information sharing purposes

What you will do

• Ensure configuration Changes Troubleshooting of MSC, MGW, HLR, HSS, STP, SBC, UDM (CUDB, HSS[1]FE, HLR-FE) IMS (P, I, S-CSCF, ATS, MGCF, MRFP, CG, ENUM, DRA, UPG) with approved processes
• Ensure MSTOP Processes are followed in the Workplace
• To participate in internal technical discussions in view to improve overall network performance and make recommendations
• To ensure correct working methodology, Best Practices and Continuous improvements in Ways of Working for efficiency
• Ensure Fault management including TT handling and fault localization within SLA
• Support and coordinate with the team on DT MOP Preparation and CR Implementation
• Incident recovery within SLA
• ensure Preventive and corrective maintenance activities and network configuration audits
• Voice core nodes SW updates and Upgrades
• Acceptance test for newly introduced nodes and services
• Improve 1st and 2nd level operation engineers’ performance during shift time and share the knowledge and proper guidelines to assure their work quality and process consistency

You will bring

• BSc. degree in Electrical Engineering, major in Communication and Electronic Engineering
• Experience level 8+ years in Ericsson CS/ IMS Troubleshooting and configuration.
• Expertise on Protocols (i.e., SIP, H.248, SS7, ISUP, BICC, SIGTRAN, INAP, CAP, TCAP, MAP, SCCP, Diameter)
• In-depth understanding of Call flow in CS Core, VOLTE/ IMS.
• Clear understanding for 2G/3G/4G core network nodes, protocols and signaling flow
• Strong hands-on experience in O&M of different Voice Core CS nodes like MSC, MGWs, STP, UDC, APG, etc
• Strong hands-on solving experience as a second level operations on IMS nodes like SBG, MTAS, CSCF, Ipworks, Eme ..etc
• Good knowledge of Virtualization, Cloud NFVI, and NFVO is highly preferred.