Overview

As a Senior Frontend Engineer on the Payments Platform team, you’ll build scalable, high-performance frontend infrastructure and user experiences that power payment flows for global merchants. You’ll work closely with product, design, backend, and customer-facing teams to ship reliable, elegant, developer-friendly solutions used across multiple products and integrations. The role combines strong product thinking with engineering excellence — from building reusable UI systems and SDKs to optimizing performance, reliability, and scalability across our platform.

Responsibilities:
  • Design and develop scalable, performant, maintainable frontend applications using React, TypeScript, and modern web technologies.
  • Build reusable UI components, shared libraries, and SDKs that support multiple products and integrations.
  • Collaborate closely with Product, Design, Backend, and Customer-facing teams.
  • Own features end-to-end — technical planning, architecture, implementation, testing, deployment, and monitoring.
  • Optimize application performance, responsiveness, and reliability across devices and browsers.
  • Code reviews, testing, documentation, and observability.
  • Publish and manage SDK and NPM package versions, including backward compatibility and release management.
  • Improve development workflows, tooling, and engineering best practices across the frontend ecosystem.
Required Qualifications:
  • 5+ years of experience building modern web applications.
  • Strong proficiency in React, TypeScript, JavaScript, HTML, CSS.
  • Experience designing and maintaining reusable frontend architectures, component libraries, or SDKs.
  • Experience managing NPM packages, versioning, and release processes.
  • Strong understanding of frontend performance optimization and modern browser behavior.
  • Experience working with APIs and complex asynchronous flows.
  • Excellent written and verbal English.
Technologies:
  • React
  • TypeScript
  • JavaScript
  • HTML
  • CSS
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