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# full-stack developer for supplier intelligence

- **Company:** Lemon
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Automation of Tests, Software as a Service, Code Review, Continuous Integration, Node.Js, Systems Integration, TypeScript, Web Services, ReactJS, Backend, Agentic-AI, Git, Front End Software Development, Serverless Computing
- **Published:** November 9, 2026
- **Apply:** https://www.jobleads.com/es/job/full-stack-developer-for-supplier-intelligence--madrid--ebbddea5b4831ae8c90ea07117c927abd

## About the Role

* 5+ years of full-stack development with Node.js / TypeScript and React
 * Hands-on experience with AI-assisted development and agentic, AI-driven engineering workflows
 * Strong web services / REST integration experience and Git
 * A product mindset - you think about user experience, business impact and scalability
 * Comfort with agile sprints and fast iteration
 * English at C1 level
 * Legal existing right to work in Spain: EU citizenship or an alternative granting a right to work in Spain (visa sponsorship is not available)

Будет плюсом

German or Spanish is a plus

## Description

Описание

Lemon.io is hiring on behalf of a fast-growing SaaS company that helps around 2,500 businesses in 50+ countries bring transparency, compliance, and efficiency to their supply chains. This is an in-house, direct-hire role suggesting relocation to Madrid. As a Senior Full-Stack Developer you'll shape a supplier intelligence product inside the company's enterprise-grade, serverless development platform. You'll build features that automate complex compliance and ESG workflows for international clients, working in a small agile squad of 4-6 people.

Задачи

 * Design, build and optimize full-stack features with Node.js and TypeScript on the backend and React on the frontend
 * Own the architecture and design of TypeScript-based solutions, optimizing for performance, reliability and UX
 * Work closely with product managers, designers and engineers to define and ship features
 * Keep quality high through code reviews, automated testing and CI/CD
 * Contribute to technical strategy and mentor junior developers

Требования

 * 5+ years of full-stack development with Node.js / TypeScript and React
 * Hands-on experience with AI-assisted development and agentic, AI-driven engineering workflows
 * Strong web services / REST integration experience and Git
 * A product mindset - you think about user experience, business impact and scalability
 * Comfort with agile sprints and fast iteration
 * English at C1 level
 * Legal existing right to work in Spain: EU citizenship or an alternative granting a right to work in Spain (visa sponsorship is not available)

Будет плюсом

German or Spanish is a plus

Условия

 * Full-time contract, hybrid in Madrid (3 days/week in the office)
 * Competitive salary plus monthly benefits
 * Relocation bonus for candidates open to moving to Madrid