> Markdown version of [/jobs/ext/1984456-desenvolupador-d-aplicacions-apis-ia-i-ui-nextjs-react](https://www.wearedevelopers.com/jobs/ext/1984456-desenvolupador-d-aplicacions-apis-ia-i-ui-nextjs-react). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# Desenvolupador D'Aplicacions: Apis, Ia I Ui (Nextjs/React)

- **Company:** Oficina de Treball del SOC
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), BigQuery, PostgreSQL, Next.js, TypeScript, ReactJS, Large Language Models, Restful APIs
- **Published:** August 8, 2026
- **Apply:** https://www.buscojobs.com.es/desenvolupador-d-aplicacions-apis-ia-i-ui-nextjs-react-en-barcelona-ID-365829601

## About the Role

Se requiere capacidad de aprendizaje rápido y buena comunicación en español e inglés técnico.

## Description

Oficina de Treball Del Soc en Barcelona busca un perfil técnico para diseñar y desarrollar APIs REST con NextJS/Express, y crear interfaces modernas con React, TypeScript y Vite.También se trabajará en IA con Claude SDK y MCP, integrando LLMs en tiempo real, y se valoran LangGraph, LangFuse y esquemas en PostgreSQL/BigQuery junto con GCP.Se requiere capacidad de aprendizaje rápido y buena comunicación en español e inglés técnico.#J-*****-Ljbffr


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