Principal AI Engineer, Business Accounts

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. About the team As part of the Business Accounts Team, you will help build the intelligent orchestration layer for Airwallex’s business account ecosystem - connecting Cash, Yield, Lending, and broader Airwallex product surfaces into a unified financial experience for businesses. This includes building systems that can support liquidity optimisation, automated transfers, and dynamic responses to business activity across payments, card spend, collections, and future product lines. This is a high-impact opportunity to join a new strategic domain at an early stage. You will help shape the architecture, APIs, and technical foundations of a core business platform that sits at the centre of Airwallex’s business customer experience and powers the next generation of financial automation. What you'll do As a Principal AI engineer, you will define the technical and strategic vision for next-generation AI solutions. By harnessing cutting-edge language models, you will drive internal efficiency and transform user experience for our customers. Your work will set the standard for AI engineering excellence, paving the way for the next wave of intelligent products and services. This role is based in Sydney. Responsibilities: Spearhead the creation of AI solutions to enable growth and drive internal efficiency across the business Design and implement robust API and system architecture for new AI applications. Assist in AI application roadmapping and strategy. Collaborate effectively with a diverse, cross-functional team to leverage existing AI technologies, and research and implement new ones, to meet product goals. Providing prompt and effective solutions or workarounds in response to application issues or software bugs, maintaining high client satisfaction. Embrace the challenges of a fast-paced, high-growth environment with a focus on innovation. Who you are We're looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory. Minimum qualifications: 10+ years in backend software development, with a passion for AI and language technologies Proven track record of delivering major impact Proficiency in Python, Typescript or Javascript Experience in design and development of large-scale distributed,