As an Sect. Head IT System Administrator & Support, your main responsibilities are:

Managing a team Ensuring Monitoring, Maintenance, Analysis, Recomendations & System Implementations process (including systems performance, capacity planning, systems enhancement, problem management, security system). Ensuring System implementations, maintenance & improvement for users' / clients' Hardware & Software, LAN/WAN, & PABX network), including administration processes & security to support the smoothness of IT operational system.