Backend Engineer, Liquidity Platform

About the role

The Liquidity Platform team powers the core infrastructure that enables Airwallex to manage funds efficiently, securely and intelligently across the globe. Our platform ensures that money is always in the right place, at the right time, and used in the most effective way. We build systems for liquidity management, safeguarding, investment, and cash data management and analysis. These capabilities are critical to supporting Airwallex's global operations, regulatory obligations and capital efficiency. As Airwallex continues to scale globally, liquidity becomes one of the most important and complex infrastructure challenges. We need to forecast funding needs, optimize cash movements, support safeguarding compliance across jurisdictions, improve investment capabilities, and uncover new opportunities for capital optimization through high-quality data and analytics. We are looking for talented and driven backend engineers to join the Liquidity Platform team and help us build one of the world's most advanced and efficient liquidity management systems.

Responsibilities

• You're pragmatic: you can balance ideal architectures with the realities of delivery, and you're comfortable iterating on systems that are already in production.
• This role is based in Singapore.
• Design, build and own backend services for global liquidity management, safeguarding, investment workflows, and cash data management.
• Develop systems that ensure funds are available in the right entities, accounts and currencies to support global business operations efficiently and reliably.
• Build scalable platforms for liquidity forecasting, cash positioning, internal fund movement, funding optimisation, and operational decision-making.
• Contribute to Airwallex's global safeguarding compliance infrastructure by building reliable systems that support regulatory reporting, segregation of funds, reconciliation and control processes.
• Design and enhance investment platform capabilities that help Airwallex manage surplus funds safely, efficiently and in line with internal policies and regulatory requirements.
• Build data pipelines, models and analytical capabilities to improve visibility into cash positions, liquidity usage, fund flows and optimisation opportunities.
• Work on complex distributed systems using modern backend architecture, including microservices, event-driven workflows, Kafka, gRPC, REST APIs, and SQL/NoSQL datastores.
• Implement robust controls for limits, approvals, reconciliation, data quality, monitoring and auditability to ensure our platform behaves predictably under stress and failure scenarios.
• Work end-to-end on features: from requirements clarification and solution design, to implementation, automated testing, deployment, observability and operational runbooks.
• Collaborate closely with Product, Treasury, Finance, Legal, Compliance, Risk, Data and other engineering teams to design APIs, data contracts and workflows that are

Additional Information

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 . 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.

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