Network Security
Location
singapore, singapore
Job Type
Full-time
Category
Other-General
Posted
June 18, 2026
Overview
Position: Permanent
Role: Network Security Specialist (PSO)
Key Responsibilities- Provide support to Citi perimeter security infrastructure, including firewall, proxy, and remote access systems.
- Investigate, document, and resolve outages to critical business systems caused by firewall, proxy, or remote access systems.
- Escalate issues and track progress with Client engineering teams, vendors, or other technical resource teams.
- Work incidents or projects beyond the scope of the level 2 team, including scheduling multiple changes, software upgrades, or configuration activities to resolve.
- Strong troubleshooting and communication skills; tcpdump/pcap/Wireshark experience; Check Point Secure Platform Pro & Gaia; Juniper SRX; Bluecoat Proxy; Palo Alto Networks firewalls; Juniper SSL VPN appliances; Juniper Netscreen firewalls; Cisco ASA with A...