VN - Fullstack Frontend Engineer B. - Job0049

Multiple Countries
Full Time
Manager/Supervisor

VN - Fullstack Frontend Engineer B. - Job0049

Summary

Our client, a leader in mobile payment systems, is seeking a Senior Fullstack Frontend Engineer to own and solve complex frontend challenges in connected payments. You will contribute to a major payments platform used by over 27 million monthly active users and supporting $100 billion in transaction volume, ensuring reliability, performance, and quality across the web experience.

This role is an opportunity to take technical ownership of mission-critical frontend systems, work across the full stack with Node.js/Express when needed, and improve testing and observability practices using Jest and React Testing Library.

Responsibilities

  • Design and develop React-based web applications and UI components for a high-scale payments platform
  • Build and maintain unit and functional tests using Jest and React Testing Library
  • Debug client-side issues and trace problems across the web application stack, including server-side Node.js/Express logs
  • Diagnose and resolve production issues, contributing to release support and incident response
  • Collaborate with engineers and QA to ensure code quality, test coverage, and reliable deployments
  • Review and improve frontend architecture and testing practices
  • Implement cross-browser compatible solutions and optimize for consistent user experience
  • Contribute to backend endpoints and integrations as needed using Node.js and Express

Requirements

  • 5+ years of professional JavaScript experience
  • 3+ years of professional React experience
  • Proficiency writing unit and functional tests with Jest and React Testing Library
  • Practical experience with Node.js and Express and a basic fullstack understanding
  • Strong debugging skills and ability to trace issues across client and server logs
  • Experience contributing independently to production React applications
  • Ability to collaborate effectively with engineering teams for QA and release support
  • Solid understanding of testing practices and maintaining test coverage

Nice to Have

  • Experience ensuring cross-browser compatibility
  • Strong CSS skills
  • Familiarity with React Hooks
  • Experience with Apollo GraphQL
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