Senior 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. Your role As a Senior 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. What you’ll be doing Partner with other teams within Airwallex to analyse new or existing applications, software, or services and help drive security improvements. Design, develop, test, and evaluate new security controls for a rapidly growing business. Perform incident response and hunt through log sources to identify new threats. Design and implement custom detection strategies and workflows to support the incident response lifecycle. Analyse and develop integration, testing, operations, and maintenance of secure systems. Use data collected from a variety of endpoint, network and cloud tools (e.g. EDR, authentication, firewalls, network traffic logs) to analyse, identify and mitigate threats. Design, test, implement, deploy and maintain cybersecurity infrastructure projects. Investigate, analyse and respond to cybersecurity incidents within the Airwallex environment. Perform assessments of systems and networks to identify deviations in configurations and policies, identify vulnerabilities and support suitable mitigation and remediation. Conduct collection, processing, and/or geolocation of threats in order to exploit, locate, and/or track cybersecurity threats infrastructure. Perform network navigation, tactical forensic analysis, and defensive operations. Identify, collect, examine, and preserve digital forensic evidence using analytical and investigative techniques. Minimum Qualifications (must-have) 5+ years working in a security engineering or incident response role within a tech company In depth experience 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 respond to incidents with high depth and quality of investigation Strong communication skills with the ability