We are looking for aJunior Full Stack Developer to join our team and support the development of a new web platform built with modern JavaScript technologies.You will work closely with Senior Developers, the Tech Lead, the Product Owner, and the UX Designer to implement new features, build UI components, integrate APIs, and contribute to the overall technical quality of the product.This role is adecuado for someone with a strong foundation in front-end development who wants to grow quickly within a high-performance environment.ResponsibilitiesDevelop and maintainReact-basedUI componentsImplement new features in collaboration with seniors and the Tech LeadIntegrate and consumeREST APIsWrite clean, maintainable, reusable codeFix bugs and improve existing functionalitySupport the development of a reusablecomponent libraryWrite unit tests and contribute to quality assuranceDocument code and technical decisions (Confluence)Participate in Agile rituals (daily, grooming,



planning)Required Qualifications2+ years of experiencein front-end or full-stack developmentSolid experience withReact(hooks, components, state)Good knowledge ofJavaScript and TypeScriptBasic experience withNode.Jsor Python (FastAPI, Django is a plus)Understanding of REST APIs and client–server communicationFamiliar with Git/GitHub and modern development workflowsAbility to collaborate within a cross-functional teamGood communication skills in EnglishNice to HaveExperience with Next.JsExperience with testing (Jest, Testing Library)Understanding of component libraries or design systemsDocker or containerization basicsExperience in data-heavy or content-driven platformsWhat We OfferFull-time freelance missionFixed daily rate: €375/day3-month contract, extendable based on project needsHybrid setup from Barcelona (office + remote mix)Work closely with senior engineers and a strong product team#J-18808-Ljbffr

📌 Freelance Junior Full Stack Developer – React / Node / Typescript – Barcelona - €375 A Day (Madrid)
🏢 Blu Selection
📍 Madrid