UI/UX Developer (React)

More about usBillennium 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 RoleWe 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.The role is hybrid - 3 days a week from the Client's office in Warsaw.What you will doDevelop 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 for8+ 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 working with design tools such as Figma and implementing UI designs with high accuracy.Hands-on experience integrating front-end applications with REST or GraphQL APIs.Familiarity with CI/CD pipelines, containerized environments, and web accessibility standards (WCAG).Perks and benefits (our offer)Comprehensive benefits - enjoy Udemy for Business, private medical care, Multisport card, veterinary package, language lessons, and shopping vouchers.Flexibility - adaptable working hours and remote/hybrid work options to suit your lifestyle & location.Career growth - access opportunities for professional development and learning, including perks related to our official partnerships with global IT giants: Microsoft, AWS, Snowflake, Salesforce & more.Global collaboration - work with a diverse, international team.Innovative environment - be part of a forward-thinking and growth-oriented workplace.Engaging community – Work with passionate professionals and participate in team-building events, hackathons, and CSR initiatives to make an impact beyond work.Team-building events including our company tradition (annual company event in Mazury).A pleasant surprise to start your journey with us in the form of a welcome pack.Recruitment processHR callInterview with the dedicated ClientFinal decision / FeedbackSounds interesting? Click 'Apply' and have a chance to hear more! 🚀