Senior AWS Network & Firewall Engineer

sagl consulting pte. ltd.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

sagl consulting pte. ltd. seeks an experienced Network & Firewall Engineer to design, administer and troubleshoot AWS networking infrastructure, firewall services and enterprise network security solutions.

The role involves designing VPCs, managing TGWs and VPNs, configuring security groups and NACLs, and maintaining AWS Network Firewall, WAF, Palo Alto firewalls, along with ALB/NLB/GWLB support. A strong focus on L3 troubleshooting and security policy management is required.

Qualifications

• 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.

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.

Skills

AWS networking

Firewall configuration

Network troubleshooting

Security policy management

Root cause analysis

VPC design

Education

Bachelor's degree in IT/CS

AWS Certified Advanced Networking – Specialty

Tools

Palo Alto firewalls

Squid proxy

AWS Network Firewall

Job description

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.