- Investigate health and readiness for all surrounding nodes related to integration- Verification and integration SGSN-MME, EPG-S, PCRF (SAPC) into existing customer’s infrastructure- Prepare procedures and do ATP- Investigate quality and readiness for traffic migration- Monitor and troubleshoot for KPI after migration

- Mainly in charge of IP/MPLS backbone core network that based for mobile voice and data service. Daily operation and maintenance many data support nodes SGSN, GGSN, routers, switches and firewalls of Juniper, Ericsson vendor.- Testing and troubleshooting GPRS data roaming with international and national partners. Working with some data roaming exchange carriers as Aicent, Comfone.- Integrate VoIP service and SS7 international signalling into core network.- Responsibility for application softwares as: network performance monitor, DNS, AAA, call data record. All applications based on Linux, Sun OS.- Maintenance and extension international internet connection for providing data roaming and international voice services.- Make daily health check documents and configuration procedures. Proposal solutions for optimizing network.- Monitor, diagnose and troubleshooting all incidents following KPI.

- Implement successfully many IP network projects: specialized data transmission for party and states (cover 64 provinces), Vinaphone 3G, HN carrier metro ethernet network (HNPT).- Deeply knowledge of MPLS, VPN technology, installing and testing many Cisco devices.- Setting a small lab for checking and testing before installing wide spread.