Senior UI/UX Front-End Engineer

Quick Facts

• Role: Senior UI/UX Front-End Engineer

• Focus: UI/UX redesign and front-end performance optimization for a high-traffic consumer platform

• Work style: Remote

Description

The Senior UI/UX Front-End Engineer enhances user experience for a high-traffic consumer platform in the sports and gaming space. The role focuses on redesigning and optimizing the platform interface to deliver a fast, lightweight, and seamless experience across devices and network conditions.

Responsibilities

• Rethink and modernize the interface and user journeys with the product team

• Design and build a coherent design system and component library with light and dark themes

• Create a distinct motion language with smooth transitions and interactions

• Write semantic, accessible, and performant HTML and CSS

• Optimize the application’s performance using Core Web Vitals

• Profile performance on low-end devices and slow networks and fix issues at their source

Requirements

• Senior-level expertise in React and TypeScript

• Deep knowledge of HTML and CSS

• Expert web animation skills

• Proven front-end optimization results

• Experience shipping web apps inside WebViews

• Strong UI/UX sense and attention to detail

• Daily use of AI tools for development

• Portfolio of live interfaces or interactions

• High availability for evening and weekend work

Nice to Have

• Experience with design tools (Figma)

• Familiarity with PWA and caching strategies

• End-to-end testing and automated performance measurement experience

• Experience with high-traffic, real-time products

• Ability to communicate in French