Staff Software Engineer, Payments

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ABOUT AIRWALLEX

Airwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 675,000 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 2,700 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 https://www.airwallex.com/en-us/operating-principles to see it in full.

HOW YOU'LL MAKE IMPACT

You’ll define the technical direction for Airwallex’s Payments Platform, lead architecture decisions and build highly reliable, high-volume distributed systems that directly affect merchant experience and business outcomes.

You’ll design and build scalable backend services, REST APIs, event-driven systems and integration components within a microservices architecture, connecting with our React frontend. You’ll drive complex initiatives across payment gateways, acquiring, issuing, card networks and local payment methods, while partnering with product, business, infrastructure and external engineering teams to turn merchant needs into technical solutions.

You’ll raise the engineering bar through architectural reviews, thoughtful approaches to technical debt, strong design practices, code quality, testing, observability, reliability and mentorship.

WHAT WE'RE LOOKING FOR

Essentials