Senior CS Core network Engineer
Alfa Mobile
Total years of experience :10 years, 8 Months
- Carried out duties as Cs Core Platform Engineer
- Performed the required commissioning of new Core nodes and services prior to their commercial delivery insuring their integration within the network
- Studied, validated, and implemented new corrections and software levels to all CS Core nodes, so as to minimize risks on the network
- Migrated several services on different platforms, Core nodes Hardware and Software migration, planned and performed Network architecture upgrade
- Written and approved MOP and Low Level Design LLD for new Cs core solutions and services
- Approved and Selected RFPs for new IN solution from Ericsson Huawei and ZTE
- Represented Alfa Mobile in IREG meetings for RILTE SIGNAL and PACKET
-Took Charge of the Operation and Maintenance of the Core mobile network nodes including MSCS MGW HLR HSS CCN & IN Nodes
- Performed Preventive maintenance and Corrective maintenance and related Incident Management internally and external emergency management with other providers such as Ericsson Huawei or NSN.
- Carried Technical handling of new and old roaming partners’ accounts including IREG testing and protocol analyzing, signing new roaming agreements and managing Partner SIMs
- Roaming implementation on MSCS HLR and CCN and follow up of all CS roaming technical issues and complaints on core nodes.
- IR24 IREG testing for CS Voice and SMS, troubleshooting test cases using call traces and implementing necessary configurations
- Protocol analysis using Tektronix and JDSU protocol analyzers to troubleshoot Call flows for CAMEL or ISUP or roaming scenarios, Wireshsark and JDSU traces to troubleshoot A Nc Nb Mc interfaces and Iu Cs traffic
- Cs Core configuration of AXE and CPP nodes including implementation of new Signaling relations, Number analysis and IMSI analysis, BICC and ISUP routes configuration, CAMEL and IN configuration, HSS and HLR Profiles configuration, AXE system application tracing and call trace, AXE MSCS Blade Cluster emergency handling
- CCN configuration for SS7 and Diameter Signaling, IMSI series and roaming configuration, Gy and Gx configuration, and troubleshooting CCN operation including CDR analysis Gy traces and tcpdumps
- Customer oriented and highly experienced in corporate customers technical handling, insuring a daily 99% feedback on all technical CS complaints within the CS unit
- Attended several technical trainings in Ericsson learning center covering all types of 2G/3G/4G mobile operation, As well attended several management and PMP trainings within Alfa Mobile.
- ITIL oriented with service desk experience and experience in all types of service handling, developed procedures related to the department tasks and created related processes
- Monitored and supervised the performance of Alfa services and telecommunications infrastructure against the performance criteria and service levels with the overall objective to achieve a 50% first line resolution or diagnostics of all incidents.
- Provided Service Desk support, initiating and managing in strong coordination and support to other team members the resolution and escalation process for any incidents related to infrastructure, applications or services under the responsibility of the unit against the relevant Service Level Agreements.
- Prepared and analyzed daily operational reports for management and engineering departments as per internal benchmarks and requirements and suggested improvements.
- Rolled out new BTS/Node B releases, from multiple providers, in accordance with engineering and operational procedures and work orders
- Developed several scripts to perform timely preventive network health check and collect automated backups and network reports
NOC engineer for Zajoulnet ISP and p-group VoIP voice carrier
Monitored key system elements, routers servers and LAC’s.
Troubleshooting l2tp network, working on Cisco NPE-G2 servers.
Gained customer service relation through troubleshooting corporate accounts and major residential issues.
Attended company trainings concerning ISP networks, MPLS networks and ADSL networks and implementation
Monitored and Investigated VoIP traffic (LCD and ASR) on Gateways and soft switches
- Worked in a team on developing an automated vehicle locator AVL system
- Setup communication with several GPS locators over TCP through GPRS
Worked on Discreet 3Dmax, Alias Maya and Adobe After Effects as 3D animator and max script programmer
Attended workshop on Siemens Handsets and Mobiles
Identified faults and repaired hardware faults in Siemens Mobile Handsets
SS7 Training and Ericsson switch introduction POTS introduction and Fiber optics workshop
Focusing on Virtualization of Network Functions, Virtual IMS networks and SIP signalling
