Senior Software Engineer, Scale (Frontend)

About the role

Airwallex, the AI-native financial operating system used by more than 675,000 businesses, is hiring a Senior Software Engineer, Scale (Frontend) for its Singapore office. The Scale team builds the multi-tenant infrastructure that lets platforms embed Airwallex financial products quickly and reliably, and also owns cross-domain product features and enterprise integrations.

Key responsibilities

• Build frontend experiences and platform capabilities that help companies embed Airwallex products at speed, using ReactJS and TypeScript
• Support multi-tenant systems, cross-domain product features and enterprise integrations for global customers
• Translate complex business, regulatory and technical requirements into scalable, maintainable user experiences
• Balance tenant isolation, performance, resilience and delivery speed
• Design enterprise integrations and partner with Product, Design, Compliance and Sales
• Make pragmatic trade-offs between performance, maintainability and delivery speed

Required profile

• 5+ years of software engineering experience with ReactJS and TypeScript
• Strong judgment on abstraction levels, and clear communication across technical and non-technical stakeholders
• Experience in cross-functional teams spanning Product, Design, Compliance and Sales
• Track record of designing for scale, maintainability and production quality
• Preferred: fintech, payments or regulated industry experience; multi-tenant SaaS or platform architecture background; experience tuning performance at high scale (100k+ QPS); proficiency with PostgreSQL, Redis, Kafka or cloud platforms (AWS, GCP, Azure); OAuth 2.0, API design or developer documentation; cross-region deployment or data residency compliance; solutions engineering or customer-facing technical experience