Senior Software Engineer, Backend - Ecosystem

Airwallex2 months ago

Location

SG - Singapore

Type

Full Time

Level

Senior

Role

Backend Engineer

Posted

Jan 7, 2026

Full TimeSenior

The role

Summary

Airwallex is seeking a Senior Backend Software Engineer for their Ecosystem team to build platforms and integrations that connect Airwallex with third-party software like accounting systems, e-commerce platforms, and marketplace solutions. The role involves developing public APIs, maintaining integrations with platforms like Xero, NetSuite, QuickBooks, and Shopify, while working with cutting-edge fintech technologies in a cross-functional environment.

What you'll do

Business Requirements Analysis: Collaborate with business and product teams to understand requirements, scenarios, and future development directions

Technical Leadership: Lead planning, design, and implementation of customer requirements with end-to-end ownership

Code Standards Management: Establish and maintain internal coding standards and best practices across the team

Accounting Platform Integration: Develop and maintain integrations with major accounting platforms like Xero, NetSuite, and QuickBooks for various use cases including bank feeds, expenses, and invoice payments

E-commerce Plugin Development: Design and develop payment plugins integrated with e-commerce platforms such as Shopify, Shopline, and WooCommerce

API Development: Build and maintain public APIs that enable third-party partners to integrate with Airwallex services

Cross-functional Collaboration: Work closely with backend, product, design, and go-to-market teams to deliver secure and reliable financial experiences

Technical Roadmap Contribution: Contribute to technical roadmap planning and provide input on new technologies and best practices

What we look for

Technical

Programming LanguagesProficiency in Java, Kotlin, C++, or Python with deep understanding of standard libraries and best practices

Internet Application Development5+ years experience developing large-scale internet applications, financial systems, or e-commerce platforms

API IntegrationExperience building and integrating APIs with external financial institutions and third-party platforms

Scalable ArchitectureUnderstanding of microservices architecture, observability, and cloud-native infrastructure

Education

Bachelor's DegreeComputer Science degree or related technical field required

Experience

Senior-Level Experience5+ years of professional software development experience

Financial SystemsExperience with large financial systems, e-commerce platforms, or fintech applications

Enterprise IntegrationBackground in building integrations with enterprise software platforms

Skills

Required skills

Backend DevelopmentStrong proficiency in server-side programming languages like Java, Kotlin, or Python

API DevelopmentExperience building RESTful APIs and third-party integrations

Financial SystemsUnderstanding of financial technology, payment processing, and accounting systems

Database ManagementExperience with relational databases and data modeling for financial applications

System ArchitectureKnowledge of scalable system design and enterprise architecture patterns

Nice to have

Domain Driven DesignExperience implementing DDD principles in complex business domains

Cloud-Native DevelopmentFamiliarity with Docker, Kubernetes, and cloud infrastructure

Platform PluginsExperience building plugins for NetSuite, Salesforce, or Shopify

Accounting Domain KnowledgeUnderstanding of accounting principles and financial workflows

AI/ML IntegrationExperience integrating AI/LLM models into production systems

ObservabilityKnowledge of monitoring, logging, and distributed tracing systems

Compensation & benefits

Benefits

Innovation Environment

Work in a forward-thinking team shaping the future of financial technology

Impactful Work

Direct influence on app marketplace growth and customer experience enhancement

Professional Development

Career advancement opportunities in a supportive and inclusive environment

Cutting-Edge Technology

Access to latest technologies and methodologies for building secure, efficient platforms

Global Team

Collaborate with over 2,000 professionals across 26 offices worldwide

Equity Opportunity

Join a company valued at $8 billion with world-leading investors

Interview process

1
Application Review — Initial screening of resume and application materials focusing on technical background and experience
2
Technical Phone Screen — 45-60 minute phone interview covering programming fundamentals, system design basics, and experience with backend technologies
3
Technical Deep Dive — 90-minute technical interview focusing on API design, database modeling, and integration architecture scenarios
4
System Design Interview — 60-minute session designing a financial integration system, discussing scalability, security, and third-party platform connectivity
5
Team Fit Interview — Cultural fit assessment with team members, discussing collaboration style, problem-solving approach, and alignment with company values
6
Final Interview — Meeting with engineering leadership to discuss career goals, technical vision, and contribution to the Ecosystem team's roadmap