Front-End Engineer at Coupang Internal

Department: Supernova

Language

Location: Seoul
Level: senior
Posted: Jul 10, 2026

Description

Coupang Pay is hiring an internal Front-End Engineer to develop and operate the KuPay simple payment service’s user interface. The role collaborates with product, UX, and software engineering teams; participates in system and code reviews; and discusses system design with senior developers. Candidates need at least 8 years of web front-end development experience, including JavaScript, TypeScript, HTML5, CSS, React, Redux, Vue.js, Angular, Webpack, Babel, Jest, Storybook, and scalable UI-component development. Preferred qualifications include Agile experience, client-side performance optimization, SPA/SSR and in-app browser development, Node.js, Express, NestJs, microservices, Git, CI/CD, Spring, and Open API SDK development.

Required Skills

JavaScript
TypeScript
React
Redux
Vue.js
Angular
Webpack
Babel
Jest
Storybook
Git
CI/CD

Additional Information

Required Previous Experiences: 8+ years of web front-end development experience
Experience with JavaScript, TypeScript, HTML5, CSS, React, Redux, Vue.js, and Angular
Experience with Webpack, Babel, Jest, and Storybook
Experience building scalable and reusable UI components
Experience with web standards and browser compatibility
Ability to analyze and work with complex and unfamiliar code
Preferred Qualifications: Positive attitude, strong motivation, and self-directed growth
Excellent collaboration and communication skills
Agile software methodology experience
Browser loading and rendering optimization
SPA, SSR, and in-app browser development
Node.js, Express, and NestJs development
Large-scale service development
Git and CI/CD experience
Spring Framework experience
Microservice architecture experience
Open API SDK development