Cyber Security Engineer - Network

Ever tapped your phone to buy a morning coffee or made a purchase from your favourite online store? Chances are, we've made it happen.

At Cuscal, we've been at the forefront of payments innovation for nearly 60 years, enabling seamless, secure solutions that millions of Australians rely on every day. From launching Australia's first ATM to helping shape the future of digital payments, we continue to transform the way money moves.

As a Cyber Security Engineer - Network, you'll be responsible for designing, implementing and continually improving Cuscal's Web Application Firewall (WAF) and DDoS protection capabilities.

What You'll Be Doing

Designing, deploying and supporting WAF and DDoS protection services across cloud, hybrid and on-premises environments

Developing and tuning WAF policies, rule sets and security controls to protect web applications and APIs

Engineering solutions to detect, prevent and respond to DDoS attacks

Working closely with Network, Cloud, Application and Security Operations teams to onboard new services and strengthen security controls

Monitoring traffic, analysing threats and investigating complex security incidents

Implementing bot management, API protection, rate limiting and advanced traffic controls

Improving visibility through monitoring, telemetry and SIEM integrations

Driving continuous improvement initiatives that strengthen Cuscal's cyber defence capability and service resilience.

We're looking for a hands-on engineer who enjoys solving complex technical challenges and securing large-scale digital environments.

Experience in network security engineering, WAF, DDoS protection, cloud security or application delivery

Strong experience implementing and operating enterprise WAF platforms

Practical experience mitigating network, protocol and application-layer DDoS attacks

Deep understanding of TCP/IP, HTTP/S, TLS, DNS, load balancing, routing, reverse proxies and CDN technologies

Experience protecting web applications and APIs against OWASP threats, bots and malicious traffic

Strong troubleshooting and traffic analysis skills across network, application and security layers

Strong stakeholder management, incident response and technical communication skills.

At Cuscal, you’ll experience interesting work that’s transforming. You get the security of an established organisation and the energy of a company committed to innovation. For 60 years, we’ve set the standard in payments, and now we’re preparing to redefine it for the future.

You’ll also enjoy a range of benefits, including:

Recognition and growth : Celebrate achievements through IGNITE and grow with tailored development opportunities

Wellbeing focus: We support your physical, mental and financial health with holistic initiatives and access to discounts via Cuscal Advantage

Diversity and inclusion : Join a workplace that values different perspectives and flexible work arrangements

If you’re excited about this opportunity, we’d love to explore how you can contribute to our vision. Applications may be reviewed as they’re received, so don’t wait - apply now.

Cuscal is an equal opportunity employer committed to creating a diverse, inclusive and barrier-free workplace. We welcome applications from Aboriginal and Torres Strait Islander peoples, people living with disability, LGBTQIA+ communities and individuals from culturally diverse backgrounds.

Note: Cuscal does not accept unsolicited resumes from recruitment agencies or search firms.