Don Yap

Network Engineer at CMB International
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Contact Information
us****@****om
(386) 825-5501
Location
Hong Kong SAR, HK
Languages
  • Cantonese -
  • Mandarin -
  • English -
Skills

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Credentials

  • CCIE (Router & Switch)
    Cisco
    Mar, 2014
    - Nov, 2024

Experience

  • CMB International
    • Hong Kong
    • Financial Services
    • 200 - 300 Employee
    • Network Engineer
      • Aug 2019 - Present

       Redesign and rebuild WAN connection between all Datacenters and Offices  Upgrade WAN connection between all Datacenters and Offices from Layer 2 structure to Layer 3 structure to enhance WAN network stability  Design load balancing solution on 2 lease line which optimize BW utilization between 2 sites.  Design solution to allow auto-failover between 2 lease lines to protect connection between sites  Design solution to achieve auto-failover between 2 VPN while the opposite site has no auto-failover mechanism.  Design workaround to allow new Vlan user to emergently access remote site via IPSec VPN without modifying VPN interested subnets.  Setup connection between On-Premises and Ali Cloud & MBCloud  Implement QoS on Cisco routers and Forti Firewall to control/optimize traffic  Setup IPSec VPN connection between sites  Firewall policy management to control access between On-Premises and 3rd party network  Cables laying in DC Show less

  • MOL Information Technology Asia Ltd
    • Network Consultant
      • Apr 2014 - May 2019

      Technical Support to DataCenter in HK & US Network Monitor: Webmetric, Whatsup Gold (SNMP, Netflow), SolarWind, RSA, WireShark Support Worldwide Remote Sites (around 50 Sites, 1000 users) Buildup VPN between DC & Cloud (ASA, Azure) Network support in Azure platform Manage vender for Network Project Network Security Enhancement Budget Management ASA Project Involved - Create 20 X IPSec VPNs between on-premises ASA & Remote Sites VPN Gateway (ASA, Solarwind, Cyberoam, Fortigate) - Create SSL VPN (Anyconnect) - Create IPSec VPN between on-premises ASA & Azure cloud - Migrate VPN authentication from local authentication to ACS authentication - Reconfigure ASA ACL to make permitted traffic accurate - Enhance VPN security by utilizing encryption as AES-256 & 30 characters PSK - NAT configuration General Project Involved: - Router & Switch configuration - Datacenter relocation - Setup MPLS connections with new Service Provider - Create Vlan and set Vlan ACL - Configure Links & Server load-balancing - IOS upgrade due to EOL or vulnerability Touched Devices: - ASA5550: IPSec, SSL, ACL, NAT, - ASR1000: NAT, BGP, OSPF, MPLS, Route-map, Prefix-list, HSRP, NTP - Nexus7000: VDC, VPC, Vlan, - Link Loadbalancer (LinkProof), - App Loadbalancer (AppDirector, Netscaler) - Email Gateway (Ironport C380) - ACS - DigiPass Show less

  • Department of Health, HK Gov
    • System Analyst
      • Aug 2013 - Nov 2013

      Evaluate proposed configuration. Liaise with Vender for the network enhancement project. Router/Switch/Firewall configuration Evaluate proposed configuration. Liaise with Vender for the network enhancement project. Router/Switch/Firewall configuration

  • Citi
    • United States
    • Financial Services
    • 700 & Above Employee
    • Network Engineer
      • Oct 2011 - May 2013

       Work in ibank for the End of Life Devices Replacement Project.  Decommission devices which are end of CISCO support.  Preparing new configuration for replacement CISCO devices.  Network enhancement  Preparing Migration Plan  In charge of migration  Supervise and cooperate with regional colleagues/vendor to complete migration in time.  Network Trouble-shooting.  Preparing Circuit Diagram with Visio.  Touched CISCO Device: 2911, 3745, 2960, 6509, 1941  Work in ibank for the End of Life Devices Replacement Project.  Decommission devices which are end of CISCO support.  Preparing new configuration for replacement CISCO devices.  Network enhancement  Preparing Migration Plan  In charge of migration  Supervise and cooperate with regional colleagues/vendor to complete migration in time.  Network Trouble-shooting.  Preparing Circuit Diagram with Visio.  Touched CISCO Device: 2911, 3745, 2960, 6509, 1941

  • China Unicom
    • Telecommunications
    • 700 & Above Employee
    • Network Engineer
      • Apr 2008 - Oct 2011

       Router/Switch (Cisco) configuration  Data Centre Management  Network failure trouble-shooting.  Data Center Customer Support  Touched Devices: Router & Switch (CISCO); DWDM(HUAWEI); SDH (Nortel)  Router/Switch (Cisco) configuration  Data Centre Management  Network failure trouble-shooting.  Data Center Customer Support  Touched Devices: Router & Switch (CISCO); DWDM(HUAWEI); SDH (Nortel)

  • Gateway Technology Development Co. Ltd
    • Network Engineer
      • May 2007 - Apr 2008

       Router/Switch (Cisco) configuration.  Network failure trouble-shooting.  Call Center Customer Support  VoIP system development  Router/Switch (Cisco) configuration.  Network failure trouble-shooting.  Call Center Customer Support  VoIP system development

Education

  • The Hong Kong Polytechnic University
    Bachelor of Engineering (B.Eng.), Electronic & Information Engineering
    2003 - 2006

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