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Hiring for the Payments Team - Card at Airwallex in 2025 Q3-Q4. As Airwallex’s core business team, we saw an impressive 300%+ positive growth from 2023 to 2024, and in the second half of 2025, we’ll keep recruiting tech-passionate engineers to join us in building new features, creating new products, and working on large-scale distributed systems, real-time transaction processing (while ensuring system stability, scalability and high availability) as well as exploring how to use AI to drive more value for business scenarios. You will be involved in the design, development, and maintenance of the APIs and Checkout features for various scenarios (incl. empowering front-end and mobile SDKs, and other Payment-based products like Payment Link), assisting merchants of all business scales and integration capabilities in achieving end-to-end payment services and enhancing user experiences.
Job Responsibility:
Collaborate with various systems and teams to establish a robust foundation for our global payment infrastructure
Engage with engineering teams across Airwallex's global offices, fostering effective communication
Regularly collaborate with users and financial partners to ensure seamless integration
Design, develop, and maintain APIs, services, and systems to uphold a reliable payment processing flow
Troubleshoot production issues across different levels of the stack
Take ownership of and optimize critical components within Airwallex's online payment processing flow
Requirements:
Minimum of 3 (for senior 5) years of engineering experience
Excel in designing elegant systems that abstract complex patterns, particularly in the financial industry
Strong aptitude for system thinking, writing high-quality code and doc, with a preference for Kotlin
Uphold high standards when working with production systems
Adhere to best practices in engineering, security, and design
Thrive in collaborative environments, making decisions with diverse stakeholders and subject matter experts
Enjoy collaborating with a diverse group of individuals, bridging gaps between different teams and areas of expertise
Nice to have:
Familiarity with Spring / Spring Boot
Proficiency in Java / Kotlin or other modern programming languages
Proficiency in HTTP protocol and RESTful specifications
Familiarity with OAuth2.0 / JWT
Experience with PostgreSQL / Redis / NoSQL
Experience with Kafka / RabbitMQ
Familiarity with Nginx / Istio
Experience with cloud vendors like Aliyun Cloud, GCP, or AWS
Experience in designing, implementing, and maintaining complex public API products with user integration guides