Senior React Developer

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. About project: We are looking for a Senior React / TypeScript Frontend Engineer to join a project delivered for a leading international transportation company specializing in railcar leasing, maintenance, and telematics services. With more than 125 years of international experience, the company operates across more than 20 countries and manages a large fleet of modern tank and freight railcars. This role is focused on developing and evolving modern, business-critical web applications using a contemporary React and TypeScript technology stack. You will be working with a modern frontend architecture built around React, Nx, Vite, and a strong focus on quality, testing, maintainability, and developer experience. You will be: developing modern frontend applications using TypeScript and the latest version of React with React Compiler, building and maintaining applications within an Nx monorepo, developing reusable UI components and frontend architecture using React and MUI, implementing responsive and maintainable styling using Emotion, building and maintaining reusable components and documenting them through Storybook, developing forms using React Hook Form and implementing schema validation with Zod or Superstruct, managing application state and data fetching using Zustand and TanStack Query, developing and maintaining unit and integration tests using Vitest and React Testing Library, implementing end-to-end tests using Playwright, ensuring code quality and consistency through ESLint, Prettier, Husky, Commitizen, and Commitlint, working with Vite as the module bundler and pnpm as the package manager, implementing logging and application monitoring using CloudWatch RUM, collaborating with other engineers and stakeholders to deliver maintainable and scalable frontend solutions, applying AI-assisted development tools such as Cursor, GitHub Copilot, and Claude throughout planning, implementation, code review, and testing, evaluating different AI models based on their…