Staff Backend Engineer, Issuing Platform

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 1,700 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.

Airwallex is a rapidly growing fintech unicorn, founded in 2015 and now flourishing at the Series E financing stage.  With a global footprint across Asia-Pacific, Europe, North America, and APAC, we specialize in providing diverse financial payment solutions for B2B merchants, empowering businesses to operate seamlessly anywhere, anytime.

The Issuing Engineering team at Airwallex is responsible for developing a range of tools and systems related to card management, transaction processing, and settlement operations. Their key areas of ownership include:

• Cards: Providing customers with tools for managing card features and lifecycle, ensuring a delightful and scalable user experience.

• Transactions: Building a global transaction processing platform that emphasizes high throughput, availability, and resiliency.

• Settlement: Overseeing the clearance, settlement, and dispute processes to ensure financial accuracy and compliance across systems.

• Platform Solutions: Allowing platform customers to create their own issuing services using Airwallex's APIs and white-label capabilities.

As a staff software engineer, you will lead building the most technical elements of our issuing network.  While you do not have direct reports, you will be expected to demonstrate leadership through the quality of your engineering work. You will ensure that the way we build our solutions is of exceptional technical quality. 

As a member of our team, you'll have the opportunity to:

• Build Impactful Infrastructure – Develop and refine a cutting-edge application infrastructure that eliminates common technical bottlenecks, reduces maintenance overhead for developers, and accelerates business innovation.

• Solve Complex, High - Scale Challenges – Tackle intricate, organization-wide problems by leveraging the latest technologies, including reactive programming, Temporal, vector databases, distributed systems, and advanced gateway solutions.

• Drive Strategic Technological Excellence – Conduct comprehensive evaluations of emerging solutions and guide the company’s long-term architectural decisions to ensure scalability, efficiency, and global resilience.

On the Issuing Platform, you'll work on mission-critical systems, collaborate with top engineering talent, and leave a lasting impact on Airwallex’s global growth. If you're passionate about building transformative technology at scale, this is the team for you! 

This role is based in Singapore.

• You are a leader – striving for technical excellence through your coding and system design

• You are committed – you strive to produce high quality and tested solutions in everything you do

• You know APIs – from designing to building REST APIs

• You are team player– fostering effective collaboration in multi-disciplinary squads across regions

• You are a thought leader - Attracting other senior hires to the company through your knowledge sharing

• You are a passionate problem solver  – weighing up pros and cons of new tech solutions before implementing them with your team

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:

• Have a career in Software Engineering with strong capabilities in modern programming languages like Java, Python or Go. and practiced both frontend and backend technologies.

• Sophisticated level knowledge with design and delivery of Enterprise Grade software with streaming data solutions like Kafka.

• 8+ years of experience in modern engineering practices focused on continuous integration and quality engineering.

• 3+ years of staff experience mentoring a community of engineers and leading the definition and execution of engineering strategy.

• Strong computer science fundamentals, solid understanding of OOP concepts.

• Experience domain driven design and event driven architectures.

• Extensive experience designing and building RESTful APIs. Familiar with modern API design principles and tools.

• Cloud experience with GCP (preferred) or AWS (EC2, RDS, ELB, CloudFront, etc.) with Docker and Kubernetes.

• Familiarity with observability tooling such as Splunk, Grafana, and Prometheus.

Preferred qualifications:

• Experience within the financial domain.

• Extensive experience with JVM based programming (Java or Kotlin). Familiar with Spring/Spring Boot.

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.