L2 network admin

cornerstone global partners pte. ltd.

Full-time Other-General
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Location
cecil, central area, Singapore
Posted
July 09, 2026

Job Description

We are seeking an experienced Senior Network Security Engineer to provide Level 2 operational support for the network security infrastructure.

This role is responsible for day-to-day cybersecurity operations, including incident handling, firewall flow management, proxy management, remote access support, IP/VPN support, and vulnerability remediation. The successful candidate will also support LANs, WANs, and VPNs, while ensuring the optimal functionality and efficiency of routers, firewalls, IPS, proxies, and load balancers.

2. KEY RESPONSIBILITIES

Operational Support

  • Provide Level 2 production support for Network and Security infrastructure.

  • Manage and resolve incidents, service requests, and change management tickets within defined SLAs.

  • Escalate and coordinate complex issues with Level 3/development teams and external vendors.

  • Provide technical guidance and super...