Chim Chetra

Experience

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  LICADHO ( NGO )

  Jan 2003 - Jan 2007

  IT Administrator

  - Build Server with RAID5, Configuration & Managements System for Computer Server;- Undertake data entry, Data cleaning, Data processing, and data analysis to ensure all data is as clean, accurate and up-to-date as possible;- Manage, Update, and further develop internal database, Designs Local are network, establish and maintain networks include LAN-WAN interface, configuration of mail system, system installation and configuration, printer systems, fundaments of security, installing third-party software;- Implement and monitor network security and data protection;- Optimize and network software and hardware;- Review and perform network infrastructure troubleshooting;- Identifies and recommends the procurement of standard equipment and service as well as non-standard equipment, Software and Service;- Maintains awareness of new information and communications technology developments, assists in testing and evaluating new products and technologies;- Automatic Backup of documents to alternatively Reserved storage;- Installed and Configuration Wireless Network;- Knowledge of Unix/Linux Operating System. Show less

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  Hello Axiata Company Limited (HACL)

  Jan 2007 - Jan 2011

  Network Engineer

  - Install & Configuration Cisco Product Family: Cisco Catalyst 6500, Cisco 7206,Cisco 7204 (NPG-2), Cisco Catalyst 4506, Cisco Catalyst 3650, Cisco Catalyst 3350, Cisco 2821, Cisco 2801, Cisco 3845, AS5400HPX, Cisco 2621XM, Cisco 2651XM- Design, Network architecture and upgrade make redundancy enterprise infrastructures. LAN/WAN troubleshooting/problem determination at Layer 1-4.- Provides strategic leadership for new IP data product evaluation. Data network design architect and Network Infrastructure. Provides support to the Network Operations for all IP data issues.- Control inbound and outbound traffics, Prevents and filter bad traffic from outside, Spanning Tree, Vlan design, broadcast storm control and loop avoidance- Identify and evaluate new equipment solutions, configure and turn up new core routers, and router port capacity in the core network. Additional responsibilities include working internally with a team to support the network operations staff in highly technical trouble isolation and resolution.- VPN Design and Implementation such as Dial Up VPN, ITP, SCCP, GRX..etc- DNS, WEB Serve, Enterprise Proxy Server, Enterprise DHCP server and CDR server (VoIP).- Able to handle Anti-Spoofing IP Address from internal & external, Dos Attack, Traffic flow of Enterprise Network.- VoIP System (Dial peer, RTP, VoIP Peering, MGCP/ H.248, SIP, H323),(Asterisk, PBX Server) Interconnection with PSTN - Manage BlackBerry accounts and integration with MSExchange using the Organization’s current device and service providers (Verizon, T-Mobile, and AT&T) to the Organization BlackBerry users Show less

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  Beeline Cambodia (Vimpelcom Group)

  Jan 2011 - Oct 2011

  Senior Network Engineer

  - Installation and Configuration Cisco Product - Configuration and Controlling Policy on Cisco firewall ASA 5500, 5502,- Provide recommendations about accessing information and support - Troubleshoot L2,L3 and all Network topology issues- Make approval paper and recommendations about purchase of technology resource- Prevent and monitor all type of virus attack from outside into company (Packet Capture & Sniffer Mac address and IP address )- Implementation and Installation IP Network Camera- Monitor IPLC traffic from Beeline Cambodia to Beeline Russia- Inventory all network and server product Show less

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  NTC ( Neocom ISP Cambodia )

  Oct 2011 - Mar 2012

  Network Manager

  - Managing planning, project and control team to ensure Expanding of NTC Core network.- Completely Project plan and Migration NTC Core network Backbone (Cisco ASR 9006)- Provide devolvement plans and motivating environment for Core team.- Ensure compliance with all applicable policies & regulatory requirements on Information Security- Escalation, incident management and ultimate ownership and core network faults and issues- Managing Core Network Optimization team to maintain NTC Core Network KPIs.- Daily, weekly and monthly leadership and management of the growing Design and Infrastructure team- Manage and responsible Network team, Server team, Transmition team. Show less

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  Beeline Cambodia (Vimpelcom Group)

  Mar 2012 - now

  Data Center Manager

  - Manage and monitoring the operational spending to ensure optimum usage; managing, training and developing all employees in Data Center- Manage Network Infrastructure, System Availability and Avaya System ( Call Center )- Support design validation testing, planning, installation/setup procedure development, script development, server builds, and integration/migration testing.- Monitor RFC execution within target KPI and Data Backup Schedule into Tab Library.- Maintenance & Monitor Hardware all billing system make sure all stabilities, Reliabilities, and Availability. Show less