Senior Software 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 150,000 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 1,800 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$6.2 billion and backed by world-leading investors including Visa, Airtree, Blackbird, Sequoia, DST Global, Greenoaks, Salesforce Ventures, Lone Pine, and Square Peg, 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.

The Team
As a global engineering powerhouse, our teams are spread across Australia, China, USA, Netherlands, and Singapore, representing a vibrant mosaic of cultures and engineering viewpoints.

We are looking for a passionate, hands on engineering lead with an interest in building scalable, distributed financial infrastructure to lead the development of a new platform to power Airwallex Yield - a hotly anticipated product which provides seamless investment opportunities to customers looking to earn return on their cash.

Launched at the end of 2023, Yield is a greenfield product that has achieved incredible success, generating $100 million USD in revenue within six months. Recently, we launched Yield Retail in Australia, resulting in a more than twofold increase in customers, within less than a month. 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

The Role
As a Senior Software Engineer, you will help define and implement our team's engineering strategy which will include contributing to the selection and rollout of patterns and frameworks across the emerging Core Banking Yield squad.

As a team, we will own the client investment & settlement workflows (signup, investment, redemption), reconciliation control, unit registry / investment ledger and integration rails with our investment providers.

About You

• Have an interest in the financial domain
• Have experience solving distributed systems challenges - scalability, consistency, latency.
• Enjoy engaging in collaborative multi-functional teams
• 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
• Previously worked with automated tests and been involved in quality control processes.
• Engaged with cloud technologies like (GCP/ AWS) with additional exposure to technologies like docker and Kubernetes
• Experience integrating with observability tooling such as Splunk, NewRelic, Prometheus, Grafana

Life At Airwallex
We commit to industry-leading salaries and rewards

We share our business success through every employee receiving equity

Two epic working spaces in the heart of Melbourne and Sydney

On-site snacks, think fully stocked fridges, beers, ice-creams

Your own Airwallex Virtual Card, with $1200 per year to spend on physical, lifestyle, health, or charitable donations

Access to our mental wellness platform to provide personalised, private support, including coaching and EAP sessions

Enjoy a paid day off on your birthday to celebrate YOU

Generous parental leave, baby bonding leave, and pregnancy loss leaves

Paid community and volunteer leave

Generous Employee Referral Program rewards for referring top talent

Equal opportunity
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.

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. If you are approached by someone claiming to represent Airwallex, please verify with our team.