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Staff Software Engineer, Risk

Airwallex· Engineering
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Hybrid (US - Seattle)$200k - $330kFull-timePosted 2mo ago

About the role

Staff Software Engineer focusing on risk capabilities, fraud detection, and risk decisioning within a high-concurrency microservice environment. Build with Java/Kotlin, leverage graph technologies, ML, and LLMs to keep Airwallex's products secure and scalable.

Responsibilities

  • Own the design and development of highly available, high-concurrency components within our microservice architecture using Java or Kotlin.
  • Improve fraud detection, risk decisioning, and alert triage through graph technologies, machine learning, and LLMs.
  • Partner with senior technical leaders and globally distributed teams across Seattle, Singapore, and China to strengthen our approach to risk management.
  • Experiment with new technologies and turn architectural improvements into stronger, more scalable systems.
  • Raise engineering standards by mentoring less-experienced engineers and promoting strong software practices.

Qualifications

  • 8+ years of core Java development experience and 5+ years building internet applications, large-scale financial systems, or e-commerce platforms.
  • 3+ years of experience developing risk or payment platforms.
  • A bachelor’s degree in computer science or a related field.
  • Strong proficiency in Java, including multithreading, high concurrency, I/O or NIO, and network communication.
  • Experience designing and developing large-scale distributed, high-concurrency, high-load, and highly available systems.
  • Strong knowledge of server technologies and experience optimising service response, data queries, service quality, concurrency, and availability.
  • Experience with Spring or Spring Boot and RESTful services.
  • Experience with Gradle, Maven, or other build tools.
  • Familiarity with JSON and XML.
  • Experience working effectively with senior technical stakeholders and mentoring less-experienced engineers.

Skills

Required:JavaDistributed systemsSpring / Spring BootMentoring
Nice to have:KotlinGraph technologiesMachine learning / MLReal-time data streamingData processing / analytics

Benefits

  • For US-based employees: medical, dental, and vision insurance; 401(k) plan; short-term and long-term disability; basic life insurance; well-being benefits; 20 paid vacation days; 12 paid holidays per year.
  • Compensation demonstrates base salary ranges and potential bonuses; full details available upon request.
Last updated Oct 15, 2026. Interested? Apply on the company site.
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About Airwallex

Trusted Global Payments & Financial Platform

Grow your business faster with Airwallex - global business accounts, high speed transfers, multi-currency cards, online payments, embedded finance, and more.

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