Senior UI/UX Front-End Engineer

Summary

The Senior UI/UX Front-End Engineer plays a critical role in enhancing the user experience for a high-traffic consumer platform in the sports and gaming space. The primary objective is to redesign and optimize the platform's interface to create a fast, lightweight, and seamless experience across various devices and network conditions.

Main Responsibilities:

• Rethink and modernize the interface and user journeys in collaboration with the product team.

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

• Create a distinct motion language for the application, ensuring smooth transitions and interactions.

• Write semantic, accessible, and performant HTML and CSS.

• Optimize the application’s performance considering Core Web Vitals.

• Profile performance on low-end devices and slow networks, addressing issues at their source.

Key Requirements:

• Senior-level expertise in React and TypeScript.

• Deep knowledge of HTML and CSS.

• Expert web animation skills.

• Proven front-end optimization results.

• Experience with shipping web apps inside WebViews.

• Strong UI/UX sense with 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.

Other Details:

Location: Remote.