We are looking for a Full Stack Developer (React and Express) to help build and evolve an enterprise Developer Portal, designed to provide development teams with a single, scalable entry point to tools, services and engineering capabilities.
This is a full stack role focused on building an enterprise Developer Portal with Spotify Backstage. You will develop React-based experiences, Backstage plugins and backend integrations that help engineering teams discover platform services, get started quickly and use the tools they need.
A key part of the role will be automating developer onboarding and platform synchronization, including detecting changes in GitHub and automatically reflecting them within the Developer Portal.

What you'll work with
• Frontend: React, TypeScript, JavaScript
• Backend / Integration: Node.js, Express
• Developer Portal: Backstage, Spotify’s open-source developer portal framework
• Developer Portal: Backstage
• Developer Ecosystem: GitHub and engineering tooling
• APIs & Integration: REST APIs, asynchronous processing and external system integrations
• Automation:



GitHub-driven workflows and automated platform synchronization
• Cloud: AWS, including AWS Lambda
• Runtime & Containers: Kubernetes
• Architecture: Enterprise portal architecture, scalability and reusable components
• UX: Reusable UI components and developer-centric experiences
• Ways of working: Agile (Scrum / Kanban), cross-functional and international teams

What you'll do
• Design, develop and evolve React and TypeScript-based components for an enterprise Developer Portal
• Build and maintain Backstage plugins to integrate internal and external engineering systems
• Develop backend and integration capabilities using TypeScript, Node.js and Express
• Build automation that detects changes in GitHub and automatically synchronizes relevant information with the Developer Portal
• Develop REST API integrations and asynchronous data-processing workflows
• Create tools that simplify the o

📌 Full Stack Developer (Madrid)
🏢 Infoser New Technologies
📍 Madrid