Software Engineer II, Issuing Platform

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 2,000 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
The issuing engineering team at Airwallex builds and operates core systems for card issuing, transaction processing, and settlement at global scale. The team owns mission-critical platforms that underpin Airwallex's issuing products, with a strong focus on reliability, scalability, and compliance. Key areas of ownership include:

• Cards: Customer-facing and internal systems for card lifecycle management, controls, and configuration.
• Transactions: A global, high-throughput transaction processing platform designed for low latency, high availability, and resiliency.
• Settlement: Clearance, settlement, and dispute workflows that ensure financial accuracy and scheme compliance.

What you'll do
As a software engineer, you will contribute to building and operating backend services within the issuing platform. You will work closely with and get to hone your craft from more senior engineers to design, implement, test, and run production systems at scale.
This role is based in Singapore.
Responsibilities:
Feature development and delivery

• Implement backend features and services that support issuing, transactions, and settlement workflows.
• Deliver well-tested, maintainable code that meets functional and non-functional requirements.

Learning and technical growth

• Develop a strong understanding of the issuing domain, system architecture, and engineering best practices.
• Learn to reason about scalability, performance, and reliability in distributed systems.

API development

• Build and extend RESTful APIs under the guidance of senior engineers.
• Follow established API design standards and contribute to improving them over time.

Collaboration and teamwork

• Work effectively within a cross-functional, multi-region team.
• Participate in code reviews, design discussions, and sprint ceremonies.

Operational responsibility

• Contribute to running production systems, including monitoring, debugging, and incident response with support.
• Help improve observability and system reliability over time.

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:

• Bachelor degree or above in computer science or software engineering related majors.
• 3+ years of professional software engineering experience.
• Strong foundations in computer science and object-oriented programming.
• Experience building backend services using Java, Kotlin, Go, or Python.
• Exposure to distributed systems and event-driven architectures.
• Experience working with RESTful APIs.
• Cloud experience with GCP (preferred) or AWS, including Docker and Kubernetes.
• Familiarity with observability tooling such as Splunk, Grafana, Prometheus, or similar.

Preferred qualifications:

• Experience in payments, fintech, or other high-scale backend systems.
• Experience with JVM-based frameworks such as Spring or Spring Boot.

Applicant Safety Policy: Fraud and Third-Party Recruiters
To 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 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.