Senior Software Engineer, Scale Platform (Frontend)

The role

You will build frontend experiences and platform capabilities using ReactJS and TypeScript. You will support multi-tenant systems, cross-domain product features, and enterprise integrations for global customers.

What you will do

• Build frontend capabilities for multi-tenant platforms
• Own cross-domain product features
• Design enterprise integrations by translating customer business needs into scalable technical solutions
• Partner with Product, Design, Compliance, and Sales
• Make pragmatic trade-offs between performance, maintainability, and delivery speed

Required qualifications

• 5+ years of software engineering experience with ReactJS and TypeScript
• Strong judgment in choosing the right level of abstraction
• Clear communication across technical and non-technical stakeholders
• Pragmatic decision-making on when to optimise for performance versus velocity
• Experience thriving in cross-functional environments spanning Product, Design, Compliance, and Sales
• A track record of designing for scale, maintainability, and production excellence

Nice to have

• Experience in fintech, payments, or another regulated industry
• Experience tuning performance at high scale, including 100k+ QPS, large user bases, or strict latency SLAs
• A background in multi-tenant SaaS or platform architecture
• Proficiency with PostgreSQL, Redis, Kafka, or cloud platforms such as AWS, GCP, or Azure
• Experience with OAuth 2.0, API design, or developer documentation
• Experience with cross-region deployment or data residency compliance
• Solutions engineering or customer-facing technical experience

About the company

Airwallex is an AI-native financial operating system for a real-time, intelligent economy. It provides financial infrastructure for global commerce and is co-headquartered in San Francisco and Singapore.