Managed large-scale infrastructure security systems (Samsung Display, Samsung Semiconductor, etc.) as a server security engineerAdministered large-scale infrastructure with 3000-10000 hosts and manager serversParticipated in security tasks through access control, session logging, and account managementExamined and checked vulnerabilities of customers based on ISMSConducted patching at regular intervals for maintenance

Responsible for maintaining a server infrastructure based on real hosts. The total number is30-150 Physical Server of hardware and software environmentResponsible for the operating system installation, configuration,maintenance of the java environment, bnadermanage used equipment, Server parts and test perfect conditionConfigured Base System setup and providing fast support to customer siteResolving the issue related to system configuration and hardware.

Responsible for maintaining a server infrastructure based on real hosts. The total number is30-400 physical server of hardware and software environmentResponsible for system tech support services to clients in a timely and effective manner.Responsible for centos, windows and other operating system installation, deployment,maintenance and other work.Responsible for the server and other related equipment to go up anddown migration and other work.Responsible for system operation and maintenance execution design andprocess optimization.Responsible for monitoring the operating status and performance of the system and adjustingit in time