L3 Network Engineer

SCIENTE • singapore, singapore • Posted June 23, 2026

Position Overview

Job Summary

We are looking for Senior Network Security Engineer with experience in designing, implementing, and managing enterprise-scale network security infrastructures across on-premises, cloud, and hybrid environments.


Mandatory Skill-set

  • Bachelor’s degree in IT/Computing or equivalent hands-on experience;
  • Must have 10- 15 years of experience in to Network security infrastructure;
  • Must have exposure to Firewalls (FortiGate Firewall, Cisco ASA, Check Point) VPNs, routing, switching, segmentation,IDS/IPS, WAF (e.g. F5 WAF) NAC systems;
  • Strong knowledge of cloud security in AWS, Azure, or GCP (VPCs, Security Groups, NSGs);
  • Automation: Basic scripting skills in Python and use of Ansible for security configuration;
  • Expertise in enterprise firewalls (Cisco, Fortinet), Zero Trust Architecture (ZTA), and SASE;
  • Experience in network segmentation (VLANs, VRFs) and micro-segmentation ...