Senior Risk Platform Engineer - Payments (Java/Kotlin)

Airwallex; Seattle (WA); On-site; USD 180,000 - 260,000; Full time

Job summary

Airwallex seeks a senior Java-focused software engineer to join the Risk Platform in Seattle. You will help protect 150,000+ businesses and manage billions in transactions daily, collaborating across global teams to implement cutting-edge risk strategies using graph, ML, and streaming tech.

The role emphasizes high concurrency, scalable systems, and mentorship to uplift the team’s engineering practices while delivering reliable payment solutions worldwide.

Qualifications

• Bachelor degree in computer science or related field.
• Strong Java development experience with a focus on high concurrency systems.
• Proficiency with Spring/Spring Boot and RESTful services.
• Experience in large-scale distributed, high-load environments.

Responsibilities

• Collaborate with senior engineers to develop payment products and transaction systems using Java/Kotlin.
• Independently design and develop components on the microservice framework.
• Experiment with new technologies and propose architectural improvements.
• Mentor junior engineers in software engineering practices and coding standards.

Skills

Java core

High concurrency

RESTful services

Java multi-threading

Distributed systems

Design patterns

Data optimization

Communication skills

Education

Bachelor's degree in computer science

Tools

Spring / Spring Boot

Gradle

Maven

JSON/XML

Job description

Airwallex seeks a senior Java-focused software engineer to join the Risk Platform in Seattle. You will help protect 150,000+ businesses and manage billions in transactions daily, collaborating across global teams to implement cutting-edge risk strategies using graph, ML, and streaming tech.

The role emphasizes high concurrency, scalable systems, and mentorship to uplift the team’s engineering practices while delivering reliable payment solutions worldwide.