Senior React Developer with NX and AI

Xebia is a global AI-first, digital transformation, and engineering partner. With over 25 years of experience and a team of 5,000 professionals across 16 countries, we help organizations design and build scalable products, platforms, and data-driven solutions. We specialize in Artificial Intelligence, Data and Cloud, Intelligent Automation, and Digital Products, combining deep technical expertise with a strong focus on engineering excellence and a people-first culture. In the CEE region, we’re a team of nearly 1,000 experts delivering modern applications, data platforms, and AI solutions for clients such as Millennium, ING, Play, Edenred, Arabian Drilling, FedEx, Leroy Merlin, Truecaller, Volotea, Schmitz Cargobull, and many, many more. We work with leading technologies including AWS, Azure, GCP, Databricks, and Snowflake, and combine strong engineering culture with a consulting mindset and a continuous focus on growth and knowledge sharing. You will be: developing and maintaining modern web applications, designing and implementing scalable and reusable frontend solutions, building user-friendly and maintainable interfaces, collaborating with designers, developers, and other stakeholders to deliver high-quality solutions, contributing to frontend architecture and technical decision-making, ensuring application quality through testing, code reviews, and continuous improvement, improving development processes, code quality, and overall developer experience, using modern development practices and AI-assisted tools to improve productivity and software quality. Your profile: strong commercial experience with React and TypeScript, practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve p roductivity, quality, or decision-making in software delivery, hands-on experience with the latest React version and React Compiler, experience working with NX, pnpm, and Vite, strong knowledge of MUI and Emotion, experience building and documenting reusable components with Storybook, practical experience with React Hook Form and Zod or Superstruct, experience with TanStack Query and Zustand, strong testing experience with Vitest, Testing Library, and Playwright, familiar with modern frontend development tools such as ESLint, Prettier, Husky, Commitizen, and Commitlint, hands-on experience with AI development tools such as Cursor, GitHub Copilot, or Claude, understand effective AI-assisted development workflows across planning, implementation, code review, and testing, understand MCP (Model Context Protocol), its benefits, and relevant use cases, understand the differences between AI models, including their capabilities and costs, and can select the appropriate model depending on the use case. Work from Poland and a work permit are required. Recruitment Process: CV review – HR call – Interview – Client Interview – Decision