Senior Software Engineer, Yield

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 2,300 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 to see it in full.

The Yield Team is the strategic force behind our investment product—a solution that empowers businesses to earn competitive returns on their idle cash without the restrictions of traditional term deposits. Following our recent market launch, we are focused on leveraging this flexibility to drive customer stickiness and long-term engagement.

As one of the fastest-growing business units at Airwallex, Yield operates like a startup within a startup, offering unparalleled opportunities for innovation and career growth. We are expanding aggressively on a global scale. If you're driven by innovation and eager to make a meaningful impact, Yield is the perfect place for you. Apply now and help shape the future of fintech!

This role is based in Sydney.

As a Senior Software Engineer on the Yield team, you will design and build the high-integrity backend systems that allow businesses to earn returns on their idle cash with total liquidity.

• Contribute to the architecture and long-term technical vision of our backend systems, helping define the engineering strategy and framework selection for the Yield squad.

• Own the end-to-end delivery of core investment workflows, including client signup, investment, and redemption processes—from design to production.

• Build and maintain mission-critical financial infrastructure, such as reconciliation controls, unit registries, and investment ledgers.

• Write high-quality, testable code with a focus on reliability and maintainability, ensuring seamless integration with our external investment providers.

• Promote and uphold engineering best practices, with a strong emphasis on observability, API design, and robust integration rails.

• Collaborate with cross-functional teams including Product, Infrastructure, and Design to ensure our product delivers the best possible experience for businesses.

We're looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.

• 5+ years of professional software engineering experience.

• Bachelor degree or above in computer science or software engineering related majors.

• Have experience solving distributed systems challenges - scalability, consistency, latency.

• Mastery of backend technologies is essential. While we do not mind what language you have most recently been using, we are using Kotlin w/ vert.x, Temporal & Kafka

• Experience working with automated tests and been involved in quality control processes.

• Cloud technologies experience with GCP or AWS, including Docker and Kubernetes.

• Experience integrating with observability tooling such as Splunk, NewRelic, Prometheus, Grafana.

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.

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.