Senior AWS Network & Firewall Engineer (L3)

SAGL CONSULTING PTE. LTD.Ang Mo Kio, Singaporemycareersfutureveröffentlicht 04.11.2026
Muss:AWSSecurityLead

Job Description

We are seeking an experienced Network & Firewall Engineer to design, administer and troubleshoot AWS networking infrastructure, firewall services and enterprise network security solutions.

Key Responsibilities

  • Design and manage AWS VPCs, subnets, routing and Transit Gateway (TGW).
  • Configure and troubleshoot VPN connectivity and network routing.
  • Manage AWS Security Groups and Network ACLs (NACLs).
  • Administer and troubleshoot AWS Network Firewall, WAF and Palo Alto firewalls.
  • Support ALB, NLB and GWLB services.
  • Manage Route 53 and troubleshoot DNS resolution issues.
  • Support and troubleshoot Squid proxy services.
  • Perform advanced L3 network and firewall troubleshooting.
  • Review firewall policies, security rules and network configurations.
  • Lead root cause analysis for complex network incidents.
  • Implement network optimisation and approved security changes.

Requirements

  • Minimum 6 years of overall relevant experience.
  • Minimum 5 years in Network & Security, including AWS networking and firewall technologies.
  • Strong hands-on experience with VPC, subnets, routing, TGW and VPN.
  • Experience with AWS Network Firewall, WAF, Security Groups and NACLs.
  • Experience with Palo Alto firewalls and Squid proxy.
  • Knowledge of ALB, NLB, GWLB and Route 53.
  • Strong L3 network troubleshooting and security policy management experience.
  • Bachelor's degree in IT, Computer Science or equivalent qualification.
  • AWS Certified Advanced Networking – Specialty certification required.