Experience

Ministry of Post and Telecommunications
• Cambodia
• Government Administration
• 1 - 100 Employee
• N/A

  • Aug 2022 - Present


Kosign co,ltd

• DBA

  • Jun 2016 - Aug 2022

  Maintenance Postgresql, Oracle, Mysql, MariaDB-Install database (single, active-standby, cluster(MySQL)) monitoring database backup and recover database troubleshooting (server crash, tuning bad SQL, hang) encrypt sensitive data data migration on a different platform Security Performance Reporting Support Developer Data Modeling -Mysql Master/Slave install && manage-Linux system administration (Ubuntu/CentOS/RHEL). Installation/configuration Security-WebServer configuration Apache Tomcat/JBoss Show less

• Information Technology Infrastructure Manager & DBA

  • May 2014 - Aug 2022

  - Manage and monitor all installed systems and infrastructure- install, configure test and maintain Operating system, application, and system management tools- install, maintain security, and backup/recovery system.- install, maintain security, backup/recovery, plan, SQL tuning, Hang, Migration, Upgrade Database(Postgresql, MySql, Oracle (stand-alone), Galera cluster-Mariadb, ProxySQL).- Teaching database knowledge to the developer.- Write a shell script to increase system and database efficiency and reduce the human intervention time on any tasks.- Linux workbase - Knowing Networking knowledge ( security, structure, TCP/IP)- involved in NBC's projects such as CSS, RFT, FAST, BAKONG- Install, configure and troubleshooting Linux base on the environment.- Join the technology community for sharing(stack overflow, stack exchange) Show less



Webcash South Korea

• DBA

  • May 2014 - May 2016

  Maintenance Postgresql,Oracle , Mysql install database (single, active-standby, cluster(mysql)) monitoring database backup and recover database trouble shooting (server crash, tuning bad sql, hang) encrypt sensitive data data migration on different platform Maintenance Postgresql,Oracle , Mysql install database (single, active-standby, cluster(mysql)) monitoring database backup and recover database trouble shooting (server crash, tuning bad sql, hang) encrypt sensitive data data migration on different platform