UI/UX Developer (React)

More about us Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. As an employer, we offer a supportive, growth-focused environment where collaboration and creativity thrive. Join us to shape the future of technology together!

About the Role We are looking for an experienced UI/UX Developer (React) who will join a project for our client from the financial services sector . In this role, you will contribute to the development of modern, scalable client-facing portals, working closely with design and engineering teams to deliver intuitive, high-performance user experiences.

is hybrid - 3 days a week from the Client's office in Warsaw.

Develop and maintain responsive front-end applications using React.js, TypeScript, and modern web technologies. Build reusable UI components and contribute to shared component libraries aligned with established design systems. Collaborate with designers and backend engineers to deliver pixel-perfect, user-friendly solutions.

Integrate front-end applications with REST APIs and microservices architecture. Optimize application performance, accessibility (WCAG), and cross-browser compatibility. What we are looking for 8+ years of software development experience, including 6+ years working with React.js and TypeScript.

Strong understanding of modern front-end architecture, state management (Redux, Context API), and component-based design. Experience wor