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.
Kai is Airwallex’s AI assistant, designed to help customers to accomplish complex financial work with great speed and control. We are building trusted agentic experiences that can understand intent, retrieve the right business context, reason over product and data, and take appropriate actions.
As the senior engineer in our AI team, you will own the end-to-end development of AI-driven solutions that redefine how we provide support and automation for both internal teams and external customers. You will shape the underlying architecture and APIs for advanced systems building cutting-edge AI solutions that enable Airwallex to scale. Your contributions will directly influence innovation, set best practices, and establish the foundation for our expanding AI portfolio.
If you are passionate about building AI solutions that directly impact customers, thrive on solving tough technical challenges, and embrace a product-focused mindset, we invite you to shape the future of Finance and AI with us.
This role is based in Singapore.
Build AI solutions to enable growth and drive internal efficiency across the business.
Design and implement robust API and system architecture for new AI applications.
Collaborate closely with a cross-functional team to bring these AI solutions to life.
Embrace the challenges of a fast-paced, high-growth environment with a focus on innovation.
We're looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.
3+ years in backend software development, with a focus on AI.
Experience building internal or customer-facing products with LLMs.
Proficiency in Python.
Expertise in building efficient, large-scale software systems.
Skill in writing high-quality, maintainable code.
Experience in design and development of large-scale distributed, high concurrency, high load, high availability systems;
Excellent communication and mentoring abilities.
A relevant degree in Computer Science, Mathematics or related fields.
Familiarity with MLOps practices and deployment pipelines for AI-driven products.
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Applicant Safety Policy: Fraud and Third-Party RecruitersTo 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.
Equal opportunityAirwallex 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.
Skills Required
- 3+ years in backend software development with a focus on AI.
- Experience building internal or customer-facing products with LLMs.
- Proficiency in Python.
- Expertise in building efficient, large-scale software systems.
- Skill in writing high-quality, maintainable code.
- Experience in design and development of large-scale distributed, high concurrency, high load, high availability systems.
- Excellent communication and mentoring abilities.
- A relevant degree in Computer Science, Mathematics or related fields.
- Familiarity with MLOps practices and deployment pipelines for AI-driven products.
Airwallex Compensation & Benefits Highlights
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Healthcare Strength — Available descriptions highlight medical, dental, vision, life, disability, and mental‑health/EAP coverage for U.S. employees, with Modern Health/Rula noted in eligible markets. Feedback suggests this comprehensive core health coverage is a standout element of the package.
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Leave & Time Off Breadth — U.S. postings cite 20 vacation days plus 12 company holidays, alongside birthday leave and three volunteer days in some locations. These policies are portrayed as generous and complemented by flexible remote‑work options in approved locations.
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Equity Value & Accessibility — Eligible employees may receive RSUs or stock options in many markets, with U.S. materials noting RSUs via Carta and performance‑based bonuses. Feedback suggests this ownership component is a key part of total compensation.
Airwallex Insights
What We Do
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 250,000+ businesses worldwide – including Brex, Navan, Qantas, SHEIN, McLaren 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 2,300 of the brightest and most innovative people in tech across 27 offices around the globe. Valued at US$11 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.
Why Work With Us
Airwallex was founded by people told their idea was unreasonable, and we've hired that way ever since. We move fast, think globally, and give you ownership from day one. If you want to pioneer global finance at scale alongside the ambitious, let's talk.
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Airwallex Teams
Airwallex Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
At a global level, we have a strong in-office culture. We’ve invested in world-class office space in hub cities around the world. We see the benefits of in-person conversation, mentoring, and knowledge-transfer as vital to our long-term success.
