Software Engineer, Spend

About the role

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 design and build backend services that power Airwallex’s global financial platform, with a focus on Spend and Accounting. You’ll work on services that help customers track, reconcile and account for spend transactions, ensuring financial data is accurate, reliable and compliant.

You’ll own features end to end, from technical design and implementation through to production operation, while helping shape the long-term architecture of our backend systems. You’ll partner closely with Product, Infrastructure and other Engineering teams, and help raise the engineering bar through high-quality code, thoughtful technical decisions and mentorship.

- Design and build scalable, secure backend services that support Spend and Accounting workflows.

- Shape the long-term architecture of backend systems that help customers track, reconcile and account for spend transactions.

- Deliver features from technical design and implementation through to reliable production operation.

- Improve system reliability, maintainability and observability through high-quality code and sound engineering practices.

- Partner with Product, Infrastructure and Engineering teams to deliver accurate, reliable and compliant financial experiences.

- Raise the engineering bar through technical mentorship and a strong focus on code quality.

You’ll work from our Melbourne office on Monday, Wednesday and Thursday.

WHAT WE'RE LOOKING FOR

Essentials

- A bachelor’s degree in Computer Science, Software Engineering or a related field.

- 2+ years of professional software engineering experience.

- Hands-on experience designing and building backend systems and APIs in production.

- Strong computer science fundamentals, including algorithms, data structures and distributed systems.

- Proficiency in at least one backend language, such as Java, Kotlin, Go or Python.