Senior Software Engineer, Search Platform

ABOUT AIRWALLEX Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 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 2,200 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$8 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, 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. ATTRIBUTES WE VALUE We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role-related expertise and sharp thinking, and you’re motivated by our mission and operating principles https://www.airwallex.com/us/operating-principles. You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor. You're humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end-to-end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next. WHAT YOU’LL DO As a vital member of the Search Platform Team, you will be part of a specialized force that meticulously bridges the gap between business exigencies and architectural finesse. You will engage in: - An advanced application infrastructure meticulously crafted to alleviate common challenges across the entire organization, significantly lowering maintenance costs for developers and streamlining innovation; - Masterfully addressing intricate, organization-wide challenges through the strategic deployment of cutting-edge technologies such as distributed systems, vector databases and data pipeline solutions; - Comprehensive, organization-wide evaluations of strategic solutions. RESPONSIBILITIES: - Work closely with Product Managers to analyze the product requirements and then produce the technique solutions & execution plan to deliver the software products; - Hands-on design, implement and deliver production-grade streaming ingestion using Flink (or similar technologies), focusing on low-latency, high-throughput, and fault-tolerant design - Tackle challenging problems in timely computation, stateful stream processing, partitioning, and resilience. Proactively troubleshooting and addressing technical bottlenecks. - Participate in and contribute to critical code, design, and performance reviews, raising the technical bar across the team - Engage with the Technical leads in building a backlog that continuously contributes to the execution of the roadmap; - Collaborate with local/global engineering teams, infrastructure teams, and product development teams and translate business requirements into robust engineering solutions WHO YOU ARE We'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: - More than 5 years of back-end development experience; Have experience in developing large-scale distributed systems. - Proficient in coding and scripting languages (Java(Kotlin) /C++ /Python, etc.) with strong software and system design abilities. - Deep familiarity with the standard library, idiomatic usage, and best practices of your primary programming languages. Able to write clear, maintainable, an