Software Engineer Backend, Billing

The role

You will lead the planning, design, and implementation of backend systems for the billing platform. You will build reliable components within a microservices architecture to support pricing, invoicing, and quote-to-cash workflows.

What you will do

• Lead the planning, design, and implementation of backend systems for Airwallex’s billing platform.
• Partner with Product and business teams to understand customer and business needs.
• Build reliable components within a microservices architecture.
• Own the architecture and development of complex, distributed systems.
• Introduce practical technologies and engineering approaches to improve building, operating, and scaling.
• Raise the bar on engineering quality through design practices and coding standards.

Required qualifications

• 3 + years of core Java development experience building internet applications, large-scale financial systems, or e-commerce platforms.
• 1+ year of experience developing payment platforms.
• Bachelor’s degree in Computer Science or a related field.
• Strong command of Java 8, including multithreading, high concurrency, I/O or NIO, and network communication.
• Experience with common design patterns and the design and development of large-scale distributed, high-concurrency, high-load, and highly available systems.
• Experience with server-side technologies and with optimising service response and data queries.
• A track record of solving complex engineering problems in production environments.
• The ability to work closely with Product and business teams to translate business needs into technical solutions.

Nice to have

• Experience with international clearing and settlement or foreign exchange transactions.
• Fluent in English and Mandarin.

About the company

Airwallex is an AI-native financial operating system for a real-time, intelligent economy. It provides financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific.