Senior Node.js 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 McLaren, Aviva, Deloitte, Spotify, Disney, ING, UPS, Tesco, Truecaller, AllSaints, Volotea, Schmitz Cargobull, Allegro, InPost, 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 scalable backend and frontend applications using modern technologies, enhancing and expanding campaign management, audience targeting, and indexing capabilities within a large-scale advertising platform, partnering with cross-functional teams and stakeholders to translate business requirements into effective technical solutions, contributing to the architecture, performance, reliability, and continuous improvement of critical services within the ad delivery ecosystem, participating in code reviews, technical discussions, and engineering initiatives to maintain high software quality standards, supporting production systems and ensuring operational excellence through participation in an on-call rotation for business-critical services (once a month). Your profile: at least 6+ years of experience in software development using Node.js, TypeScript, and React, proven ability to solve complex technical problems and deliver high-quality solutions, experience with, or willingness to learn, AWS cloud services, good understanding of CI/CD pipelines and software delivery best practices, gommitment to writing maintainable, scalable, and well-tested code, ability to work independently and contribute to technical decision-making in a senior role, practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery, work from the European Union region and a work permit are required. Nice to have: experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work. interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches. Recruitment Process: CV review – HR call – Interview – Client Interview – Decision