Staff Software Engineer (Fintech)

Location: Singapore

Company

Airwallex provides an integrated payments and financial platform for global businesses, including business accounts, payments, spend management, treasury, and embedded finance.

What you will do

• Lead the high-level architecture and long-term technical roadmap for the App Marketplace or Extension Framework.
• Design and implement SDKs, webhooks, and UI-extension patterns for third-party developers.
• Build and integrate APIs connecting Airwallex with financial institutions and accounting, HR, ERP, and marketplace platforms.
• Establish coding standards, observability patterns, and security protocols across the engineering team.
• Build documentation infrastructure, sandboxes, and tooling to improve the external developer experience.
• Collaborate with backend, product, design, and go-to-market teams on scalable ecosystem solutions.

Requirements

• Bachelor’s degree in Computer Science or a related field.
• 7+ years of experience developing Internet applications, large financial systems, or e-commerce platforms.
• Proficiency in Java, Kotlin, C++, Python, or similar programming and scripting languages.
• Deep knowledge of standard libraries, idiomatic language usage, and software engineering best practices.
• Direct experience building or maintaining a public-facing developer platform, app marketplace, or extension framework.

Nice to have

• Deep expertise in Domain-Driven Design for complex business logic and microservice boundaries.
• Experience with Docker, Kubernetes, cloud-native technology stacks, and advanced observability tools.
• Experience integrating AI or LLM models into integration workflows or developer tooling.

Culture & Benefits

• Work on high-visibility problems in global payments and financial infrastructure.
• Collaborate with cross-functional engineering, product, design, and go-to-market teams.
• Operate with an emphasis on ownership, curiosity, speed, sound judgment, and technical rigor.
• Join an international technology company with offices across 27 locations.