Software Engineer II, Transaction Risk

About AirwallexAirwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 150,000 businesses worldwide – including Brex, Rippling, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale.Proudly founded in Melbourne, we have a team of over 1,700 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$6.2 billion and backed by world-leading investors including Visa, Airtree, Blackbird, Sequoia, DST Global, Greenoaks, Salesforce Ventures, Lone Pine, and Square Peg, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us.About the teamThe risk platform team at Airwallex is responsible for managing the risk for all the products at Airwallex, including GTPN, PA, Issuing, Onboarding, and Account takeover. The risk landscape is constantly changing, and fraudsters are becoming increasingly sophisticated. We are at the forefront of innovation in risk management.What you’ll doOur mission is to keep Airwallex's products and services safe and secure, and make Airwallex a trusted partner for businesses around the world. We use cutting-edge technologies, such as graph, ML, and LLM, to implement and improve our strategy.Our team expands across Beijing, Shanghai and Singapore. We collaborate with other teams and our customers globally to ensure a holistic approach for risk management.This role is based in Shanghai.Responsibilities:1. Collaborate with the senior technical team to develop and enhance the company’s payment products and transaction systems using Java/ Kotlin.2. Independently design and develop components on the company’s microservice framework.3. Experiment with new technologies and propose architectural improvements.4. Support and mentor less-experienced team members in software engineering practices and coding standards.Who you areWe're looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.Minimum qualifications:1. Proficient in Java, familiar with Java multi-threading, high concurrency, IO / NIO, network communication, etc .;2. Familiar with commonly used design patterns, with experience in design and development of large-scale distributed, high concurrency, high load, high availability systems;3. Master various common server technologies, which can optimize service response and data query, ensure various service quality, and solve the problems of high concurrency and high availability;4. Familiar with Spring / Spring Boot and RESTful services;5. Master Gradle / Maven and other build tools;6. Familiar with JSON & XML.Preferred qualifications:1. In-depth knowledge of risk management strategies and fraud detection techniques, particularly within financial and fintech industries.2. Familiarity with graph databases and the ability to utilize them for pattern and anomaly detection.3. Experience with machine learning models and frameworks for predictive risk analytics.4. Familiarity with real-time data streaming technologies like Apache Kafka/Flink to ensure timely detection and response to potential threats.5.Strong data analytics skills, with experience using tools like ClickHouse, Spark, or NoSQL databases for large-scale data processing and risk analysis.6. Advanced problem-solving skills with prior experience in incident response and risk mitigation planning7. Strong team player with effective communication skills.Equal opportunityAirwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.Airwallex does not accept unsolicited resumes from search firms/recruiters. Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s). Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary.

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