Staff Product Security Engineer

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 250,000 businesses worldwide – including Brex, 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 2,300 of the brightest and most innovative people in tech across 27 offices around the globe. Valued at US$11 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.