Level 3 Customer Support• Network Administration & Troubleshooting (Cabling, Network Traffic Monitoring, etc)• Installation, configuration, and maintenance of network components like Switches, Routers, and Wireless Access Points (Aruba, Unifi, Rujee)• Microsoft O365 & G suite Supporting• IP PBX Installation and Configuration• Installations and provide support for HP ProLiant (ILO), Dell (Idract) & Lenovo (Xclarity) Servers• Microsoft Hyper-V & VMware ESXI , VCenter installation, Configuration, and Backup • Installation, Administration, Troubleshooting, and Maintenance of Windows Server 2012, 2016,2019 & 2022(Active Directory, Group Policy)• Conducted penetration testing for customers to identify vulnerabilities in the network infrastructure and applications, recommending and implementing security measures to mitigate risks(Nmap, ZenMap,Wireshark)• Analyzing, troubleshooting, and installing on-site with CCTV Supports• Installation of Video Conferencing solutions (Poly & Logitech Rally)• Coordinate with corporate, customers• NAS Configurations (QNAP, Synology,WD)• Develop and implement IT security policies and procedures to ensure data and systems' confidentiality, integrity, and availability. Received positive feedback from clients for providing exceptional technical support• Install, Manage Time attendance and access control management systems, including BioStar ,BioTime and ZKT

• Resolved software and technical issues for end-users, ensuring minimal disruption to operations.• Installed, configured, and maintained Windows Server 2012, 2016, and 2019, including Active Directory, DNS, Group Policy, and WSUS• Managed and maintained the virtualization infrastructure in Hyper-V, optimizing performance and ensuring system availability• Optimize network performance and reliability by maintaining hardware and software, analyzing technical issues, and ensuring availability to system users• Managed database (MsSQL, MySQL) maintenance tasks, including migrations, backups, and fragmentations, ensuring data integrity and optimal performance.• Managed the internal PABX system (Avaya/Pioneer), ensuring seamless communication within the organization.• Administered the LAN for over 500 users, ensuring network stability and performance.• Provided support for CCTV systems, including troubleshooting and maintenance.• Assisted end-users in connecting and using video conferencing applications such as Polycom, Microsoft Teams, Zoom, and WebEx.• Configured and maintained Fortinet firewalls, ensuring network security and compliance with organizational policies, including IPSEC, SSL, VPN, and site-to-site configurations.• Conducted penetration testing to identify vulnerabilities in the network.

• Managed Windows 7, 10, Professional, providing technical support and troubleshooting for operating system and Microsoft Outlook issues• Demonstrated a thorough understanding of TCP/IP and networking concepts, utilizing this knowledge to configure and manage Layer 2 network switches and routers.• Resolving software and technical issues for more than 300 on-premise and overseas users, ensuring minimal disruption to operations.• Conducted troubleshooting for PCs, laptops, and printers, diagnosing and resolving technical issues promptly.• Implemented and maintained security measures to protect the company's computer systems and networks (server &Network hardening) • Maintained the video surveillance system to ensure the security • Installed, configured, and provided support for Caterpillar software (SIS & ET Program), contributing to efficient operations in specialized areas• Conducted regular training sessions for end-users to enhance their digital skills and troubleshoot common software and technical issues.• Assisted in resolving software and technical issues for more than 300 on-premise and overseas users, ensuring minimal disruption to operations

Make sure High system availabilityNetwork Wiring & Troubleshooting Novell NetWareSupport ERP system users End-user support