Edge Security Engineer: WAF, DDoS & API Defense

Preacta; Sydney; On-site; AUD 130,000 - 180,000; Full time

Job summary

Preacta is seeking a Cyber Security Engineer - Network to design, implement and operate WAF and DDoS protections for internet-facing services. You will work across on-premises, cloud and hybrid environments to define secure architecture, policies and detection methods.

The role requires hands-on experience with leading WAF/DDoS platforms, incident response readiness and collaboration with Network, Cloud, Application and Security Operations teams.

Qualifications

• 5+ years in network security engineering, WAF, DDoS protection, application delivery or cloud security.
• Strong hands-on experience with enterprise WAF platforms, including onboarding, policy creation, tuning and lifecycle management.
• Experience detecting and mitigating network, transport, protocol and application-layer DDoS attacks.

Responsibilities

• Develop and maintain the target-state architecture for WAF, DDoS and edge-security across on-premises, cloud and hybrid environments.
• Define secure and reusable architecture patterns for reverse proxies, CDNs, cloud and on-premises WAF platforms, DNS security, bot management, API protection, rate limiting and DDoS mitigation.
• Establish security engineering principles, design standards and control requirements for protecting internet-facing websites, portals, applications and APIs.
• Assess changes for WAF, DDoS, availability and internet-exposure implications.
• Provide practical security architecture advice balancing risk, resilience, performance and customer impact.
• Contribute to security reviews, threat modelling and technology selection for internet-facing services.
• Define uplift opportunities to consolidate controls and retire ineffective WAF/DDoS technologies.
• Maintain alignment with cybersecurity strategy, enterprise architecture and regulatory obligations.

Skills

WAF policy tuning

DDoS protection

Cloud security

Network security

SIEM integration

Scripting (PowerShell / Python)

TLS/PKI

Threat modelling

Tools

F5 BIG-IP

Akamai

Cloudflare

Azure WAF/DDoS

AWS WAF/Shield

Job description

Preacta is seeking a Cyber Security Engineer - Network to design, implement and operate WAF and DDoS protections for internet-facing services. You will work across on-premises, cloud and hybrid environments to define secure architecture, policies and detection methods.

The role requires hands-on experience with leading WAF/DDoS platforms, incident response readiness and collaboration with Network, Cloud, Application and Security Operations teams.