Senior Frontend Engineer, Billing

Airwallex5 months ago

Location

SG - Singapore

Type

Full Time

Salary

SGD 120,000 – 180,000

Level

Senior

Role

Frontend Engineer

Posted

Oct 9, 2025

Full TimeSenior

The role

Summary

Airwallex is seeking a Senior Frontend Engineer to join their Billing team in Singapore, focusing on building next-generation billing and invoicing solutions. The role involves developing scalable micro frontend applications using React and TypeScript, implementing GraphQL backends, and creating reusable design systems.

What you'll do

Frontend Development: Code with the latest version of React and TypeScript to build high-quality products

Micro Frontend Architecture: Build micro frontend web applications with domain-based design architecture using single SPA framework

Backend for Frontend: Leverage Apollo GraphQL as BFF to build scalable and high-performance Node.js services

Design System Collaboration: Cooperate with design team to build design system and common components for universal UI/UX experience

Package Development: Deliver NPM packages and library widgets with open source projects for easy client integration

Cloud Deployment: Deploy micro frontend and Node.js services using GCP, Aliyun K8S, and Cloudflare with GitLab CI/CD

Testing Implementation: Implement unit tests and e2e tests using React Testing Library and Cypress with 80%+ coverage

CMS Development: Build no-code/serverless CMS systems using Contentful and Next.js for corporate and branding pages

Technical Leadership: Engage with frontend guild, research cutting-edge technologies, and drive initiatives for high-quality products

What we look for

Technical

Frontend ExperienceMore than 5 years of frontend development experience

Architecture ExperienceMore than 2 years of frontend architecture experience

Financial SystemsExperience developing large-scale financial web systems

Core TechnologiesProficient in HTML5, CSS3, ECMAScript 6+, and TypeScript

Framework ExpertiseProficient in React, Vue, Angular and corresponding technology stacks

Styling LibrariesExperience with Emotion, Styled-Component, and SCSS

UI FrameworksFamiliar with Material UI, Ant Design, Bootstrap or other CSS frameworks

Web ProtocolsFamiliar with HTTP(S) protocol and RESTful specifications

Build ToolsExperience with Webpack, Polyfill, and Rollup.js

Backend IntegrationFamiliar with building BFF using Node.js

Education

Bachelor's DegreeComputer Science or related major, bachelor degree or above

Experience

Senior Level ExperienceMinimum 5+ years in frontend development with 2+ years in architecture

Financial DomainExperience with large-scale financial web systems

Framework DevelopmentPreferred: Frontend framework development experience

Technical LeadershipPreferred: Technical writing, blogs, or public speaking experience

International ExperiencePreferred: Overseas study and work experience

Skills

Required skills

ReactLatest version with TypeScript for building high-quality products

TypeScriptStrong typing for large-scale application development

Frontend ArchitectureMicro frontend and domain-based design architecture

Node.jsBuilding backend for frontend (BFF) services

Apollo GraphQLScalable and high-performance backend integration

TestingReact Testing Library and Cypress for comprehensive test coverage

Cloud DeploymentGCP, Aliyun K8S, and CI/CD best practices

HTML5/CSS3Modern web standards and responsive design

ECMAScript 6+Modern JavaScript features and patterns

Nice to have

GraphQLAdvanced query language for APIs

Next.jsReact framework for serverless applications

RedisIn-memory data structure store

Data AnalyticsGoogle Analytics and Google Tag Manager experience

CSS AnimationAdvanced styling and animation techniques

DevOpsBDD, TDD, CI/CD, Docker, K8S, and Nginx experience

Design ToolsZeplin, Abstract, and mobile responsive design

Backend LanguagesJava, Kotlin, and Shell scripting experience

Compensation & benefits

Salary

SGD 120,000 – 180,000 (annual)

Stock options

Available

Benefits

Global Team Collaboration

Work with over 2,000 innovative professionals across 26 offices worldwide

High-Growth Environment

Join a US$8 billion valued company backed by world-leading investors

Career Development

Accelerated learning and true ownership in building the future of global banking

Equal Opportunity

Diverse and inclusive workplace that values merit, qualifications, and talent

Accommodation Support

Disability and special needs accommodation available

Cross-Functional Impact

Collaborate with various domains globally including GTPN, PA, Scale, Issuing, and Spend

Interview process

1
Application Review — Initial screening of resume and portfolio through careers.airwallex.com
2
Technical Screen — Remote technical assessment covering React, TypeScript, and frontend architecture
3
System Design Interview — Micro frontend architecture and scalability discussion
4
Coding Interview — Live coding session focusing on React, GraphQL, and testing practices
5
Team Interview — Cultural fit and collaboration assessment with Billing team members
6
Final Interview — Senior leadership interview covering career goals and technical leadership