Staff Software Engineer, Tech Platform

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 https://www.airwallex.com/us/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. WHO WE ARE? ABOUT THE TEAM: Airwallex is a pioneering fintech company breaking down financial barriers and enabling seamless global business. At its core, the Tech Platform Team drives the foundation of our technological excellence, building scalable, high-performance systems that power innovation worldwide. - Optimizing Global Traffic – Managing north-south and east-west API Gateways for seamless external and internal interactions. - Ensuring Fast, Reliable Connectivity – Building a robust global routing infrastructure that seamlessly balances regulatory compliance with a unified, high-performance user experience across regions. - Enhancing Search – Powering an intelligent search platform for fast, accurate information retrieval. - Orchestrating Notifications – Enabling efficient delivery of SMS, Email, Webhooks, and Push notifications. - Automating Workflows – Driving seamless workflow creation, scheduling, and execution. IN THIS ROLE, YOU WILL: Be part of an elite team shaping cutting-edge infrastructure and redefining global fintech. If you thrive on solving complex challenges and building the future of technology, this is where you belong. As a member of our team, you'll have the opportunity to: - Build Impactful Infrastructure – Develop and refine a cutting-edge application infrastructure that eliminates common technical bottlenecks, reduces maintenance overhead for developers, and accelerates business innovation. - Solve Complex, High - Scale Challenges – Tackle intricate, organization-wide problems by leveraging the latest technologies, including reactive programming, Temporal, vector databases, distributed systems, and advanced gateway solutions. - Drive Strategic Technological Excellence – Conduct comprehensive evaluations of emerging solutions and guide the company’s long-term architectural decisions to ensure scalability, efficiency, and global resilience. At Tech Platform, you'll work on mission-critical systems, collaborate with top engineering talent, and leave a lasting impact on Airwallex’s global growth. If you're passionate about building transformative technology at scale, this is the team for you! YOU MIGHT BE A GREAT FIT IF YOU: 1. Strong proficiency in backend programming languages suc