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Airwallex Logo Airwallex · IT - Software Development

Senior Software Engineer, Payments Platform

Netherlands, Amsterdam · Job Posted February 21, 2026
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Job Description

In this role, you will play a key part in diverse initiatives across our international payments platform. We highly value your expertise in constructing, designing, and engineering payment systems, whether it's a gateway, acquiring, issuing, or equivalent. If you're not already familiar, you'll gain comprehensive knowledge of Visa and Mastercard payment platforms. Collaboration with the payments product team and occasional interaction with partners' engineering teams are encouraged. As a vital member of our core acquiring payment team, you'll contribute to building the next-generation Payment Acceptance infrastructure with a constant focus on Merchant needs.

Job Responsibility

  • Play a key part in diverse initiatives across our international payments platform
  • Contribute to building the next-generation Payment Acceptance infrastructure with a constant focus on Merchant needs
  • Developing various REST services and integration components within a backend microservices architecture, connecting with our React frontend
  • Designing and implementing new capabilities aligned with our product roadmap
  • Conducting architectural reviews for current and upcoming solutions
  • Addressing tech debt, and enhancing operational effectiveness

Requirements

  • Over 5 years of expertise in contemporary engineering methodologies, emphasizing continuous integration and quality engineering
  • Proficient in guiding a concept from inception to implementation, with a dedication to delivering meticulously tested and high-quality solutions
  • Possesses robust computer science fundamentals, with a recent focus on Java or Kotlin, Spring / Spring Boot technologies
  • Specialized in designing and constructing REST APIs, adept in handling high-volume distributed systems, Kafka event streams, and distributed data storage systems such as Cassandra, Hazelcast, Oracle Coherence, or similar technologies
  • Demonstrated proficiency in cloud platforms like GCP or AWS (EC2, RDS, ELB, CloudFront), along with exposure to containerization technologies like Docker and Kubernetes
  • Skilled in Javascript / Typescript and well-versed in operational tooling, including but not limited to New Relic, StatsD, Elk, Datadog, and Prometheus

Nice to have

  • Extensive experience in the development of payment gateways, acquiring platforms, or issuing platforms
  • Expertise in integrating Local Payment Methods (i.e., iDeal, Klarna, Trustly) or major Cards (i.e., Visa, Mastercard)
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