Senior Full-stack Developer (AI-Native)

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. In the CEE region, they deliver modern applications, data platforms, and AI solutions for clients including McLaren, Aviva, Deloitte, Spotify, Disney, ING, UPS, Tesco, and others. The team specializes in Artificial Intelligence, Data and Cloud, Intelligent Automation, and Digital Products, working with technologies such as AWS, Azure, GCP, Databricks, and Snowflake. The product team focuses on building an AI-powered, autonomous accounting platform for small businesses and accountants.

• Minimum 6 years of commercial experience in fullstack software development
• Strong backend skills with Node.js, Express, and TypeScript
• Frontend experience with React and Next.js (SSR/SSG, App Router)
• Designing and building REST APIs; GraphQL is a plus
• Experience with PostgreSQL data modeling and query optimization
• Unit and integration testing experience (e.g., Jest, Vitest)
• CI/CD and containerization knowledge (Docker)
• Experience with cloud platforms (AWS, GCP, Azure)
• Hands-on production experience with AI/LLM technologies: LLM APIs, tool calling, streaming, prompting, agent workflows
• Daily use of AI development tools (e.g., Cursor, GitHub Copilot, Claude Code)
• Ability to verify, debug, and refactor AI-generated code
• Self-reliance and ownership of tasks from analysis to deployment
• Ability to make and justify architectural decisions
• Clear technical communication with team and stakeholders
• Experience in startups or small, fast-moving teams
• Practical experience improving productivity with AI-powered assistants
• Work from the European Union region and valid work permit required

Nice to have:

• Experience with NoSQL databases (e.g., MongoDB, Redis)
• Building AI features such as RAG, embeddings, prompt engineering, agents
• End-to-end testing frameworks (Playwright, Cypress)
• Microservices architecture and monorepos (Nx, Turborepo)
• Cloud certifications (AWS, GCP, Azure)
• ORM familiarity (e.g., Prisma, TypeORM)
• Experience applying GenAI within SDLC workflows and prompt patterns
• Interest in AI-driven practices like agent workflows, automation patterns, AI-augmented development

• Build and improve product experiences used by small business owners and accountants
• Develop backend services and integrations with accounting systems
• Design and ship reliable AI-powered workflows using LLM APIs, tool calling, streaming, and agent flows
• Improve reliability and performance of the product
• Maintain a good codebase environment
• Collaborate closely with product, engineering, and domain experts to deliver features to customers

Work from the European Union region and a valid work permit are required.