Responsible for the provisioning and support of all information technology and related computing systems in the Faculty of Mathematics. Management of computing environments andsupporting infrastructure, enabling and improving outcomes for administrative, teaching, and research computing in the Faculty.

* Systems Administrator at Centre for Extended Learning (CEL)- Working alongside the systems team to ensure the ongoing security, reliability and integrity of data, systems and services of a number of complex web applications.- Close interaction, coordination and collaboration with the university's central information systems and technology department with respect to interoperability of technology, server/database setup, access privileges, monitoring and enforcing university policies.- Assess, plan and implement new systems configurations while managing changes to existing in a proactive manner to reduce reactive troubleshooting.

* DevOps automation with Ansible/Jenkins/GitLab- Installation and upgrade of production application- Configuration of client remote database access- Application service administration- Maintenance of production server environments on Linux- AWS Cloud Operational maintenance- Documentation of process and procedures- Installation and configuration of Jenkins service

* Systems Administrator for university ERP systems.- Responsible for system administration : especially Linux systems on VMware esxi environment- Project : University ERP; Banner(ellucian) upgrade project

* System Administrator/Software Engineer of Security Monitoring & Control System which are for all global SAMSUNG branches security management- Led a operation of Security Operation Center supporting system : On premise IDC/CLOUD(AWS) security monitoring system, File transfer system, Proxy policy management system, Firewall- Windows/Linux System Administration and DevOps operations(CI/CD, Automation)- Coordinated Web system development operations - Responsible for department security manager- Project('2015) : Set up Disaster recovery system for SOC (Hot site and VMware)* Security Coordinator for SAMSUNG Global Data Centre - Coordinated security training and annual conference for global security staff - Revised security policy, guidelines - Supported for penetration test, security audit and authentication - Project('2013) : Set up Web Application Firewall system for EU region

* Project Manager/Leader, System/Software Engineer- Managed and led Human Resource Management System project - Developed revised HR management system : Java, Oracle based Web system- Analyzed global HR policy, standardized and implemented to system - Project('2010~2013) : Implemented HR system for SAMSUNG global branches(5 countries 9 branches, as project manager/leader)- Project('2011) : Implemented HR system for Korean Government(as project leader/security manager)* System/Software Engineer- Set up infrastructure for HR system : OS/DBMS/WAS installation and administration- Developed Human resource management system : Java, Oracle based Web system- Analyzed global HR policy and implemented to system - Project('2003~2010) : Set up HR system for SAMSUNG global branches(9 countries 24 branches, as project member/leader)

* System Administrator for Insurance/Finance business system. - Responsible for system administration : Mainframe(zOS), Windows server, Network(Gateway) - Reported monthly overall operation to customers - Project : 3way Sysplex High Availability implementation(as a project member)

* First Lieutenant at field artillery battalion* Speciality : Information Communication