IT Infrastructure Support Engineer

KWE-KINTETSU WORLD EXPRESS (S) PTE LTDSingaporemycareersfuturepublished 08/17/2026
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Must-have:AWSMobileSecurity

Perform day-to-day configuration, firmware upgrades, and troubleshooting for Cisco Core and Access Switches (VLAN routing, trunking, STP, port security). Manage and optimize the Aruba Wireless Network (Access Points and Controllers) to ensure strong Wi-Fi coverage across all three locations. Monitor site-to-site network traffic, bandwidth usage, and latency across core infrastructure. Monitor and manage security rules within AWS Native Firewall and AWS Security Groups. Administer on-premises Fortinet (FortiGate) Firewalls across three sites, including policy management, UTM features, and Site-to-Site IPsec VPN tunnels back to AWS. Provide Tier-2/3 technical support for enterprise end points including Windows/Mac PCs, laptops, network printers, copiers, and handheld RF scanners. Ensure stable wireless connectivity and roaming performance for RF scanners and mobile devices operating on the Aruba Wi-Fi network. Maintain accurate technical documentation, including Cisco topology maps, Fortinet firewall rule bases, IP allocations, and asset inventories.

Job Requirements

  • Overall Experience: 3 to 4 years of direct hands-on experience in IT Infrastructure and Network Administration in a multi-site corporate environment.
  • Solid hands-on practical experience in managing enterprise firewalls, routers, switches, proxy servers, domain name servers (DNS), bandwidth management system, IPS/IDS and server/platform system.
  • Good project management experience in implementing hardware solutions.
  • Clear verbal and written communication skills to coordinate with internal teams and external hardware vendors.