Cyber Security Engineer - Network

Cuscal Limited; Sydney; On-site; AUD 120,000 - 180,000; Full time

Benefits offered by this job

Recognition and growth

Wellbeing focus

Diversity and inclusion

Job summary

Cuscal Limited in Sydney is seeking a Cyber Security Engineer - Network on a 24-month max term contract. You will design, implement and continually improve Cuscal's Web Application Firewall (WAF) and DDoS protection across cloud, hybrid and on-premises environments.

You will work with Network, Cloud, Application and Security Operations teams to onboard new services, tune policies, monitor traffic, respond to incidents and strengthen cyber defence.

Qualifications

• Hands-on network security engineering experience.
• Experience deploying and operating enterprise WAF.
• Experience mitigating network and application-layer DDoS attacks.
• Strong knowledge of TCP/IP, HTTP/S, TLS, DNS, load balancing, proxies and CDN techs.
• Experience protecting web apps and APIs from OWASP threats and malicious traffic.
• Strong troubleshooting and traffic analysis across network, app and security layers.
• Excellent stakeholder management and incident response skills.

Responsibilities

• Design, deploy and support WAF and DDoS services across cloud, hybrid and on-prem environments.
• Develop and tune WAF policies and security controls for web apps and APIs.
• Engineer solutions to detect, prevent and respond to DDoS attacks.
• Collaborate with Network, Cloud, App and Security Ops teams to onboard services and strengthen controls.
• Monitor traffic, investigate threats and respond to incidents.
• Implement bot management, API protection, rate limiting and advanced traffic controls.
• Improve visibility via telemetry and SIEM integrations.
• Drive continuous improvements to strengthen Cuscal's cyber defence.

Skills

WAF

DDoS protection

Cloud security

Application delivery

TCP/IP

OWASP threats

Incident response

Security operations

Tools

WAF platforms

Job description

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.

Job Description

This is a 24-month Max Term Contract

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.

Qualifications

What You'll Bring

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.

Additional Information

Why Cuscal?

At Cuscal, you'll experience interesting work that is 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.

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.