Full stack engineer - React, Kotlin, Python - Remote

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. Tech stack: React, Kotlin, Python You are: Senior-level Full-Stack development experience with a modern web technology stack. Strong backend experience with a server-side language, preferably JVM-based. Professional experience building Single Page Applications, preferably with React and TypeScript. Strong frontend development skills, including HTML, CSS, responsive design, cross-browser compatibility and accessibility. Experience designing, building and maintaining APIs and integrations. Good understanding of software engineering principles, including SOLID, DRY and data/ER modelling. Experience with automated testing, code review and modern software quality practices. Experience working with cloud infrastructure and Infrastructure as Code (IaC). Familiarity with logging and monitoring tools and troubleshooting production/application issues. Experience with CI/CD practices. Experience with build and version control tools, such as Maven and Git/GitHub. Experience working in Agile teams, using Scrum or Kanban and tools such as Jira. Strong communication skills, ability to work independently and collaborate effectively with Product, UX and engineering teams. Your profile: Good knowledge of Python and Kotlin. Experience working with microservices architecture. Practical experience with React and modern JavaScript. Good knowledge of HTML and CSS. Understanding of REST API design and consumption. Hands-on experience working with JSON. Willingness to work on both backend and frontend development. Ability to switch quickly between different technology areas. English proficiency at B2 level or higher. Work from the European Union region and a work permit are required. Nice to have: Experience with Docker and CI/CD processes (GitLab CI). Experience working in cloud environments. Knowledge of UX/UI principles. Experience with Responsive Web Design (RWD). Experience integrating with external partner systems Recruitment Process: CV review – HR call – Interview – Client Interview – Decision