RocaSalvatella is a leading consultancy in digital transformation, innovation and business. We support large organizations in adapting to the digital environment, combining strategy, technology and talent to generate real and sustainable impact. We design and implement solutions that transform the way organizations work, innovate and grow. We are looking for a Full Stack Developer to join our AI Solutions team.

Your mission will be to design, develop and put into production web applications with generative AI, from the front end to integration with language models.Design the APIs and services that orchestrate calls to LLMs and connect to the client's data and systems. Implement RAG, function calling and prompts, with response evaluation and cost and latency control. Write tests, conduct code reviews and deploy with Docker and CI/CD in the cloud, meeting security and data protection requirements.

At least 3 years of experience developing full stack web applications that have gone into production.Back end in Python (FastAPI, Django or similar)



and/or Node.Js with TypeScript, and front end in React or another modern framework with TypeScript.PostgreSQL or similar, SQL and REST API design with OAuth 2.0 / OpenID Connect authentication.Git, Docker, CI/CD and experience deploying on Azure, AWS or GCP.Hands-on experience integrating LLM APIs (OpenAI, Azure OpenAI, Anthropic or similar) into an application.The judgment to distinguish a working demo from maintainable software, and the ability to make progress with incomplete requirements by quickly validating with the user.Fluent Spanish and English. ????? ??????: We will value previous experience with RAG in production and vector databases, with LLM or agent orchestration frameworks (LangChain, LangGraph or similar), or in consulting projects with end clients???????:Versátil working hours and hybrid work.Take part in strategic projects for leading clients nationally and internationally.

📌 Fullstack Node.js Engineer (Barcelona)
🏢 Rocasalvatella
📍 Barcelona