Staff Product Security Engineer

About Airwallex Airwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 676,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own. We started in Melbourne in 2015 to build the infrastructure global commerce runs on. We're the regulated backbone behind global payments: not by accident, but by design. A decade plus, 85+ licenses, and a financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific. We're co-headquartered in San Francisco and Singapore, with more than 2,300 people across 27 offices. We hire builders with founder-level energy, people who move fast with good judgment, dig in with real curiosity, and make calls from first principles rather than waiting to be told what to do. Read our operating principles to see it in full. About the team Airwallex’s Information Security team partners closely with engineering, IT, and other stakeholders to protect our systems, data, and employees while enabling the business to move quickly. The team helps build and maintain strong security practices across the company—from secure product and infrastructure design to risk reduction, incident response, audits, and compliance—so security is built into how we operate, not treated as a blocker. What you'll do As a Staff Product Security Engineer at Airwallex, you will be a trusted member of the Information Security team and work closely with Infrastructure, Product and Engineering teams across the business. Reporting directly to the Product Security Engineering Manager, this role will see you being a critical part of Airwallex, helping to identify, protect, detect, respond and recover the organisation from cybersecurity threats. This is a dynamic and hands-on role that requires experience in designing, developing and managing infrastructure projects, processes and standards related to the security of our networks, systems and applications. This role is based in San Francisco, or Sydney or Melbourne Responsibilities: Create and build security controls that strengthen Airwallex’s ability to scale securely. Design and deliver security improvements across applications, software, and services. Develop and operationalise detection strategies and response workflows that improve the speed and effectiveness of incident response. Build and enhance secure systems through strong integration, testing, operations, and maintenance practices. Leverage and analyse endpoint, network, and cloud telemetry to identify, investigate, and mitigate threats. Design, implement, and maintain cybersecurity infrastructure that improves resilience across the Airwallex environment. Investigate, contain, and respond to cybersecurity incidents to reduce risk and strengthen defensive capability. Assess and improve system and network security by identifying vulnerabilities, configuration issues, and remediation opportunities. Collect and analyse threat intelligence and forensic evidence to better understand, track, and disrupt threats. Conduct and support defensive operations, tactical forensics, and threat hunting to strengthen security outcomes. Partner with teams across Airwallex to embed security into new and existing applications, software, and services and drive continuous improvement. Who you are We’re looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory. Minimum qualifications: 8+ years working in a security engineering or incident response role within a tech company In depth expertise with at least one major cloud platform Strong knowledge of common software development tools and infrastructure, including CI/CD tooling and pipelines Comprehensive understanding of common attacker tools and techniques, how they can be detected and prevented, and ability to r