ABOUT AIRWALLEX Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 businesses worldwide – including Brex, Rippling, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale. Proudly founded in Melbourne, we have a team of over 2,200 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$8 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us. ATTRIBUTES WE VALUE We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role-related expertise and sharp thinking, and you’re motivated by our mission and operating principles. You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor. You're humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end-to-end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next. 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 respond to incidents with high depth and quality of investigation * Strong communication skills with the ability to explain technical security and software concepts to a non-technical audience * A passion for solving the complex challenges of high-growth startups * Self motivation and drive to learn new skills, or dive deeper into existing skills Preferred qualifications: * Bachelor's degree in Cybersecurity, Computer Science or similar * Recognised training or cybersecurity certifications (eg OSCP, GIAC, CEH) * Strong experience with Splunk and other common security monitoring tools * Past DevOps/SRE experience with Kubernetes * Experience with GCP or Alibaba Cloud (with or without certification) * Experience with Okta, GSuite, and cloud-based VPN services * Experience with Python, Java/Kotlin * Published articles, journals or blogs related to cybersecurity APPLICANT SAFETY POLICY: FRAUD AND THIRD-PARTY RECRUITERS To protect you from recruitment scams, please be aware that Airwallex will not ask for bank details, sensitive ID numbers (i.e. passport), or any form of payment during the application or interview process. All official communication will come from an @airwallex.com email address. Please apply only through careers.airwallex.com or our official LinkedIn page. Airwallex does not accept unsolicited resumes from search firms/recruiters. Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s). Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary. EQUAL OPPORTUNITY Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.