Network Perimeter Engineer

Employment Type: Singaporean Only

About the Role

We are seeking an experienced Network Perimeter Engineer to design, operate, and secure enterprise and cloud network perimeter environments. You will manage firewalls, VPNs, reverse proxies, and network security infrastructure across AWS and hybrid environments.

Key Responsibilities

Network Security & Cloud Infrastructure

• Implement and manage firewalls and security appliances (e.g. Palo Alto, VPN, AWS WAF)
• Administer AWS networking services (VPC, subnets, routing, security groups, NACLs, Transit Gateway, load balancers)
• Design secure and resilient network architectures with cloud, security, and DevOps teams
• Monitor and troubleshoot network performance using CloudWatch, VPC Flow Logs, CloudTrail

Operations & Support

• Provide Level 2 / Level 3 support for incidents and service requests
• Monitor network health, performance, and availability
• Perform patching, upgrades, and lifecycle management (weekend maintenance required)
• Participate in 24/7 standby rotation

IT Service Management & Documentation

• Follow ITIL processes (Incident, Problem, Change Management)
• Maintain SLA compliance and timely ticket resolution
• Create and maintain technical documentation, SOPs, and runbooks

Requirements

• Degree in IT, Computer Science, Engineering, or related field
• Minimum 2+ years experience in network engineering (AWS or hybrid cloud preferred)
• Strong knowledge of firewall management, network segmentation, and traffic filtering
• Experience in network architecture, optimisation, and troubleshooting
• Strong analytical, problem-solving, and communication skills

Preferred Skills

• Certifications (AWS Networking / Solutions Architect / Palo Alto)
• Experience in regulated or government environments
• Knowledge of automation tools (Terraform, CloudFormation, Ansible)
• Familiarity with Zero Trust architecture