Senior Frontend Engineer, Growth

Airwallex • Seattle, WA

5d • $158,000 - $225,000 • Hybrid

About The Position

Airwallex is hiring a Senior Frontend Engineer for its Growth Engineering team. The team is building an AI-native platform to support customer acquisition, activation, conversion, retention, and expansion. In this role, you will design, build, and own high-performance web experiences and frontend platforms, ranging from customer-facing acquisition and conversion journeys to AI-powered internal tools.

You will build scalable websites, landing pages, growth funnels, campaign management platforms, and personalized customer journeys using React and TypeScript. You will develop interfaces and workflows for AI-powered insights, automation, and decision-making, and own technical delivery from design and implementation through testing, deployment, and optimization. You will also improve performance, SEO, accessibility, and conversion through experimentation and data-driven iteration.

The role involves partnering with Product, Design, Marketing, Data Science, and Backend Engineering to address ambiguous business problems. You will contribute to frontend architecture, reusable component systems, code reviews, knowledge sharing, and mentoring. The US position works from the Seattle office three days a week.

Requirements

• At least 5 years of professional frontend engineering experience, including building and operating production web applications.
• Bachelor's degree in Computer Science, Engineering, or a related field.
• Strong proficiency in JavaScript, TypeScript, React, and modern frontend development practices.
• Solid computer science fundamentals and experience building clean, modular, maintainable applications.
• Strong understanding of frontend architecture and web performance, including component design, state management, API integration, responsive design, accessibility, and performance optimization.
• Ability to independently design and deliver complex frontend solutions, make sound technical tradeoffs, and own features from implementation through production.
• Strong ownership, problem-solving, and collaboration skills, including navigating ambiguity and delivering high-quality work with minimal oversight.

Nice To Haves

• Experience building growth platforms, campaign management systems, content management systems, experimentation frameworks, or customer-facing conversion funnels.
• Experience developing AI-powered applications or agentic user experiences, including interactive AI workflows, streaming responses, and human-in-the-loop interfaces.
• Experience with web performance optimization, A/B testing, feature flagging, analytics instrumentation, and conversion optimization.
• Experience with Next.js, server-side rendering, static generation, design systems, and frontend build tooling.
• Experience rapidly prototyping and using data to validate product hypotheses and guide iteration.
• Experience in high-growth technology companies, fintech, payments, or regulated environments.
• Experience mentoring engineers and improving frontend engineering practices.

Responsibilities

• Build scalable, high-performance frontend experiences, including websites, landing pages, growth funnels, campaign management platforms, and personalized customer journeys.
• Develop intuitive user experiences and workflows for AI-powered insights, automation, and intelligent decision-making.
• Independently design, implement, test, deploy, and optimize complex frontend applications and components.
• Improve web performance, SEO, accessibility, and conversion through experimentation, feature flagging, and data-driven iteration.
• Partner with Product, Design, Marketing, Data Science, and Backend Engineering to translate requirements and ambiguous business problems into intuitive, scalable solutions.
• Improve frontend engineering quality through architecture, reusable component systems, code reviews, and knowledge sharing.
• Mentor other engineers.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior