Job Description

Evaluate, design, build and deploy IT infrastructure services using leading edge technologies that are highly available, scalable and secure. Operate, administer and support day-to-day operations for enterprise-level technology infrastructure including but not limited to network, internet, and VPN, covering the Bank's Singapore office and India office (remotely). Diagnose, troubleshoot and respond to infrastructure outages, disruptions or unpredicted challenges for network, VPN and voice, escalating complex issues with clear documentation. Review, test and perform upgrades/patches to infrastructure appliances, including Cisco ISE, ASA, Switches, WLC and Fortigate firewalls, under change management guidelines. Develop and maintain automation scripts (Python or Bash) to streamline repetitive network operations and minimise manual network BAU ops, including patch orchestration, TLS/SSL certificate tracking and renewal, vulnerability scan scheduling and remediation ticketing, and configuration compliance/drift detection against approved baselines. Support basic AWS cloud networking tasks, including reviewing VPC configurations, Security Groups and site-to-site VPN tunnels, in collaboration with senior infrastructure/SRE team members. Participate in project initiatives, planning and implementation based on infrastructure strategy. Create and maintain technical documentation for infrastructure on processes, procedures, plans and configurations, including network topology diagrams, device inventory, IP address management (IPAM) and runbooks for automated workflows. Ensure standards and procedures are in place to effectively manage the infrastructure services for network, voice and telecommunication devices, in line with MAS regulatory requirements for a licensed bank. Participate in change management and ITIL processes, raising and reviewing RFCs for network changes. Coordinate with vendors for incident escalation, break-fix and hardware support. Assist in security hardening activities and support audit evidence collection for network-related controls. Willing to be on stand-by and contactable after off-hours to support any outages or major incidents.

Job Requirements