Senior Software Engineer, Payments Platform

About the role

ABOUT AIRWALLEX

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 2,700 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 https://www.airwallex.com/en-us/operating-principles to see it in full.

Hiring Location: Amsterdam, Netherlands (Hybrid Mode)

Total Compensation: 150,000 to 200,000 EUR

SENIOR SOFTWARE ENGINEER, PAYMENTS PLATFORM

HOW YOU'LL MAKE IMPACT

You'll help build the infrastructure that makes international payments reliable, scalable, and easier for businesses to accept across markets.

- Design and implement new capabilities across Airwallex's international payments platform, helping businesses accept and process payments reliably across markets.

- Build REST services and integration components within a backend microservices architecture, connecting with our React frontend.

- Shape the next generation of Payment Acceptance infrastructure, keeping merchant needs and business outcomes at the centre of your decisions.

- Conduct architectural reviews, address technical debt, and improve the operational effectiveness of current and upcoming solutions.

- Partner with the Payments Product team and, where needed, engineering teams at external partners.

You'll work in a hybrid setup, spending three days in the office.

WHAT WE'RE LOOKING FOR

Essentials

- Over four years of experience using contemporary engineering methodologies, with an emphasis on continuous integration and quality engineering.

- Experience taking concepts from inception through implementation, with a focus on delivering thoroughly tested, high-quality solutions.

- Strong computer science fundamentals and recent hands-on experience with Java or Kotlin and Spring or Spring Boot.

- Experience designing and building REST APIs and working with high-volume distributed systems.

- Experience with Kafka event streams and distributed data storage systems such as Cassandra, Hazelcast, Oracle Coherence, or similar technologies.

- Experience with cloud platforms such as GCP or AWS, including services such as EC2, RDS, ELB, or CloudFront.