Leadtech Group is seeking a Senior Full‑Stack AI Native Developer for Barcelona or Remote. You will build and scale AI-powered platforms across the full stack, from NextJS/Express APIs to React/TypeScript frontends, collaborating with AI product managers to translate complex requirements into robust features.
You’ll work with LangGraph, LangChain, LangFuse to enable multi‑step reasoning, integrate with external services, and contribute to PostgreSQL/BigQuery data workflows in a cloud environment.
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