Senior Software Engineer, Frontend, Growth

About Airwallex Airwallex is the AI-native financial operating system for a real-time, intelligent economy. More than 676,000 businesses, including McLaren Racing, Qantas, SHEIN, and TikTok, use us, directly or through our platform partners, to run their financial operations or build and monetize financial products of their own. We started in Melbourne in 2015 to build the infrastructure global commerce runs on. We're the regulated backbone behind global payments: not by accident, but by design. A decade plus, 85+ licenses, and a financial infrastructure spanning North America, Europe, the Middle East, and Asia-Pacific. We're co-headquartered in San Francisco and Singapore, with more than 2,300 people across 27 offices. We hire builders with founder-level energy, people who move fast with good judgment, dig in with real curiosity, and make calls from first principles rather than waiting to be told what to do. Read our operating principles to see it in full. Locations: Singapore The Opportunity: Be Part of Our Growth Team Our Growth Team sits at the heart of Airwallex’s mission, focusing on user acquisition and strategic market expansion. We leverage data and cutting-edge technologies to craft seamless, intuitive experiences that help millions of users discover, engage with, and benefit from our products. From new-user funnels to onboarding optimizations, our Growth team is all about experimentation, rapid iteration, and driving sustainable business impact. Whether it’s designing scalable architectures for high-traffic pages, building robust A/B testing frameworks, or integrating global marketing platforms, the Growth team’s contributions directly shape how we attract and retain customers worldwide. Joining the Growth team means you’ll have a front-row seat to the most crucial stage of our product lifecycle and play a pivotal role in fueling the next wave of our global expansion. What You’ll Do Architect and Build Design, develop, and enhance highly scalable, performance-driven frontend solutions that power our growth funnels, landing pages, and marketing campaigns. Write well-tested, maintainable, and efficient code using React and TypeScript, ensuring robust performance and smooth user interactions. Enable Data-Driven Decisions Partner closely with data scientists and product managers to track and interpret critical user behavior metrics. Build and integrate A/B testing frameworks, feature flags, and analytics solutions that optimize our user acquisition strategies and inform future product investments. Collaborate and Refine Work with cross-functional teams—including Design, Product, and Marketing—to deliver delightful user experiences. Participate in design discussions, code reviews, and strategic planning sessions to elevate the quality and impact of our user-facing products. Experiment and Iterate Develop rapid prototypes to validate hypotheses about user acquisition and engagement. Continuously refine and optimize user journey flows, aiming to reduce friction and increase conversions. Drive Technical Excellence Champion frontend best practices, ensuring high standards of code quality, security, and performance. Provide technical leadership, and shape the architectural roadmap for our growth-focused products. Ensure Security & Compliance Integrate secure coding practices and frameworks to protect user data, maintain high standards of privacy, and comply with global regulations. Proactively identify and address potential vulnerabilities, preventing unauthorized access and safeguarding critical data. Who You Are Seasoned Engineer: You have a solid foundation in TypeScript and front-end frameworks like React, with an ability to craft clean, modular code. Data-Driven Mindset: You thrive on metrics and experiments. A/B testing, funnel optimization, and hypothesis-driven development are second nature to you. User-Focused Innovator: You understand that product success hinges on a seamless user experience. You embrace user resear