We are looking for a Full Stack Developer (React and Express) to help build and evolve an enterpriseDeveloper 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 withSpotify 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 beautomating developer onboarding and platform synchronization, including detecting changes in GitHub and automatically reflecting them within the Developer Portal.What you'll work withDeveloper Portal:BackstageDeveloper Ecosystem:GitHub and engineering toolingAPIs & Integration:REST APIs, asynchronous processing and external system integrationsAutomation:GitHub-driven workflows and automated platform synchronizationCloud:AWS, including AWS LambdaArchitecture:Enterprise portal architecture, scalability and reusable componentsUX:Reusable UI components and developer-centric experiencesWays of working:Agile (Scrum / Kanban), cross-functional and international teamsWhat you'll doDesign, develop and evolveReact and TypeScript-based componentsfor an enterprise Developer PortalBuild and maintainBackstage pluginsto integrate internal and external engineering systemsDevelop backend and integration capabilities usingTypeScript, Node.Js and ExpressBuild automation that detects changes inGitHuband automatically synchronizes relevant information with the Developer PortalDevelop REST API integrations and asynchronous data-processing workflowsCreate tools that simplify theonboarding of development teamsand reduce friction when adopting the platformCollaborate with UX specialists to design intuitive and reusable developer experiencesContribute to architectural decisions around scalability, maintainability and platform evolutionIntegrate cloud-native services running onAWS and KubernetesCollaborate with engineering teams and stakeholders across different organizational areasParticipate actively in technical discussions, code reviews and Agile ceremoniesWhat we’re looking forPrevious hands-on experience with Backstage, Spotify’sopen-source developer portal framework.Solid professional experience developing applications withReactExperience withNode.Js / ExpressStrong experience designing and consumingREST APIsExperience with asynchronous data processing and system integrationsGood understanding ofUI/UX principlesand reusable component designExperience working withGitHuband modern software development workflowsGood understanding of system and process architecturesExperience working in complexenterprise IT environmentsAbility to work autonomously while collaborating effectively with international and cross-functional teamsStrong communication and problem-solving skillsExperience working withAgile methodologies (Scrum / Kanban)What makes you stand outExperience developingBackstage pluginsor working with similar Internal Developer PortalsExperience withDeveloper Experience (DevEx)or Platform Engineering initiativesExperience buildingGitHub integrations, webhooks or event-driven automationsExperience withAWS, particularly AWS LambdaExperience deploying or operating applications onKubernetesExperience integrating developer ecosystems such as source control, CI/CD, observability, compliance or AI toolingUnderstanding ofInternal Developer Platforms (IDP), developer self-service or automated onboardingIf you are passionate aboutReact and TypeScript but want to go beyond traditional frontend development, building tools and platforms that improve how other engineers work, we want to hear from you.#J-18808-Ljbffr

📌 Full Stack Developer (Spotify Backstage, React & Express) (Madrid)
🏢 Infoser Technological Solutions, Hardware, Big Data Experts
📍 Madrid