Job Description: - To Implement security procedures, regular assessment & authorization security controls in accordance with procedures for systems and networks - To co-ordinate the security patch and update process - To ensure proactive steps are taken for any potential problems about security, performance and availability - To perform periodic performance review and coordination of execution of improvement actions - To develop and maintain operation and support procedures for first tier support team - To maintain system operation standards to compile with ISO requirement - To provide emergency call-out and non-office hour support Requirements: - Degree holder in Computer Science or Information Technology - Fluency in spoken/written Chinese and English. Knowledge of Putonghua preferable - 3 years or above relevant experience in system or network administration - Familiar with information security practice , principles and trends - Sound knowledge in TCP/IP, LAN and WAN - Sound knowledge in operating Firewall (Cisco, Fortigate), VMWare, KVM, Windows OS, Unix/Linux OS - Good documentation skill to maintain policies & records for security process & infrastructure - Knowledge in Shell Scripting and Perl preferable - Holder of light vehicle or motorcycle driving license preferable - Significant security technology and tools experience preferable - Good communication and interpersonal skill