Pius Chan

Background

About Pius Chan

Designed network architectures and set up for new start up sites based on the requirement, included installation, network configuration and implementation- Deployed and managed WAN like MPLS, Metro Ethernet and Site to Site VPN for connecting different sites to head office, such as WAN architecture design - Configured and monitored Firewall for entire organization, architecture design, planning and risk management and deployment- Implemented and designed SDWAN/SD-WAN network architecture and deployment for different sites to archive network resilient purpose- Supervised entire LAN/WAN including new deploy setup, installation, configuration, maintenance, monitoring, network support and improvement; network administration all network devices with firmware upgrades, provided debugging, troubleshooting or problem-solving and disaster recovery solutions- Set up and maintained firewall for headquarter and remote offices, network security management including configured and deployed policies for access control, UTM and security functions eg. Anti-virus scanning, web filtering and IPS/IDS to ensure a secure network environment (Cisco ASA, Juniper, Sophos, FortiGate, Sonicwall), also, managed remote access VPN’s, IPSec VPN- Administered Wireless network, including planning, configuration, deployment, and testing (Aruba, Ruckus) managed APs- Experienced in variety of network protocols and services: TCP/IP, UDP, FTP,SFTP, SSL, HTTP, HTTPS, SSO, DHCP, DNS, POP3, SMTP, SNMP, ARP, Telnet, SSH and VoIP; Switching protocols: VLAN, VTP, LACP, VRRP, HSRP,STP; Routing protocols: RIP, EIGRP, OSPF, BGP, PBR and Static routing- Administered DHCP, DNS, Active Directory and radius Server and GPOs; Windows server setup and Virtual environments (VM Ware and Hyper-V)- Deployed AWS Cloud computing Services, VPC, EC2, S3, IAM, Route 53, CloudFront, Web application firewall(WAF) and load balancer etc. as well as infrastructure architecture design and deployment; Managed Microsoft Azure and Microsoft 365 and backup by using another cloud platform- Documented support resolutions in ticket tracking systems, also technical documentation inside knowledgebases for sharing; asset management for all node or network devices with technical specifications into inventory systems and checking the life cycle- Monitored and responded to network alerts with monitoring tools to ensure the network connectivity, network performance and reliability as well as system performance to maintain a highly reliable performance and reporting investigation for network issues.