Symphony Communication Public Company Limited (www.symphony.net.th)- Head of Technical Assistance Center Department. Responsible for driving Technical Assistance Center &Technical Training Center team, to provide Teir2 technical support 24*7, manage and solving technical issues with higher support team Teir3 (Vendor). Also provide technical training and on the job training to teams. Core Network and Facility Equipment team, to installation, commissioning, network stability test and final acceptance test. Network Operation& Management team, to handle Ticketing system, Job order, Network provisioning for services delivery. Network Monitoring & Maintenance 24*7 to control MTTR, keep control services level agreement SLA99.9% and network availability.- Support DWDM, MPLS, FTTx, Ethernet and SDH project for planning&design, installation, commissioning, testing, acceptance test and project's documentation.- Support Transmission network expansion and reconfiguration.- Support Submarine Cable Network Services team and MCT project.- Support NMS & NE software upgrade, update and system migration.- Lead the team to support POC for new product covered DWDM, OTN, MPLS, NMS, SDH and Network test equipment & tools.

- Responsible for project implementation and Support the Royal Thai Air Force DWDM project and FTTx project.- Provided installation, commissioning test , services provisioning, acceptance testing and onsite support during deployment.

Tellabs (Thailand) Co, Ltd. (http:://www.tellabs.com)- Responsible for all post sales services delivery.- Deliveries 24x7 hotline supports, O&M support and customer’s maintenance agreement with SLA.- Supported the customers projects in Thailand such as DTAC, AIS, Truemove and UTEL-CAT- Technical support, manage and solving technical issues with higher support team Teir2&Teir3 - Support Site Survey, Installation, NE commissioning and acceptance test.- Support Network Planning, NMS & NE software upgrades, update and System migration.- Support Network Expansion, Upgrades, Reconfiguration and NOC Operation.- Supervised team to support End to End circuits provisioning and during network reconfiguration on NMS.- Implemented and customized the DCN network for NMS.- Provide product and technical training, OJT for customer and support engineer team.- Manage the projects to deliveries the Access, SDH, DWDM product and deployment services.- Manage and coaching the support engineer and subcontractor team to support network deployment.- Provide the project weekly report/ monthly report to customer/management.- Manage resource and Supervised subcontractors to installation/commission/testing and FAT- Provide product information, technical support and project budget for sale team.- Wrote Method of Procedures (MOP) for technical activities including equipment test procedure and acceptance test procedure.

- Provide technical assistance for Maconi’s Optical Network Products.- Support Optical networks Operations by EM-OS, MV36&MV38 for Telecomasia’s SDH Upgrade project.- Support installations and commissioning MSH64ADM & MSH86DXC for Telecomasia’s SDH Upgrade project. - Support Synfonet Software upgrade for customer CAT/DTAC Synfonet upgrade project.

- Managed and Support Network Operation Center team to operation DTAC Mobile and UIH NON-POTs network- Support SDH network design, SDH network implementation.

- Support PDH&SDH&M/W Network Planning, SDH Installation, Commissioning and Acceptance Test- Support Transmission Network operation such as Provisioning, Monitoring, Maintenance and SDH Upgrade

- Support VHF Repeater & Trunk Radio Installation and Maintenance