Senior Backend Engineer, Spend Team (Cards)

The role

You will design and build scalable backend systems for card issuance and expense management products. You will collaborate with cross-functional teams and mentor other engineers.

What you will do

• Design and implement scalable, secure backend services that power the Cards product.
• Contribute to the architecture and long-term technical vision of our backend systems.
• Own end-to-end delivery of new features and improvements from design to production.
• Write high-quality, testable code with attention to reliability and maintainability.
• Promote and uphold engineering best practices, including observability and API design.
• Collaborate with cross-functional teams including product, infrastructure, and design.
• Provide technical mentorship and support the growth of other engineers on the team.

Required qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• 5+ years of professional software engineering experience.
• Hands-on experience designing and building backend systems and APIs in production.
• Strong computer science fundamentals, including algorithms, data structures, and distributed systems.
• Proficient in at least one backend language (e.g., Java, Kotlin, Go, Python).
• Solid understanding of REST API design and backend frameworks (e.g., Spring Boot).
• Experience working with cloud infrastructure (e.g., AWS, GCP) and container orchestration (e.g., Kubernetes).
• Strong focus on performance, reliability, and code quality.

Nice to have

• Familiarity with observability and monitoring tools (e.g., Grafana, Prometheus, Splunk).

About the company

Airwallex is an AI-native financial operating system used by businesses to run financial operations or build financial products. It provides financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific.