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# Julián Duque
Principal Developer Advocate at Heroku building AI apps in Node.js.

## About

Julián Duque is a Principal Developer Advocate at Heroku. He focuses on making complex application architecture accessible and practical for software teams.

His recent work dives into the realities of integrating Large Language Models into existing stacks. He teaches developers how to build AI applications using Node.js and LangChain, navigating through concrete implementation details like text embeddings and managing vector databases with PostgreSQL.



## Past Sessions

### World Congress 2025 · July 9, 2025
Berlin, Germany
- [Building AI Applications with LangChain and Node.js](https://www.wearedevelopers.com/videos/1512-building-ai-applications-with-langchain-and-node-js) · 30 min · 🎥 Watch recording



## Videos

- [Building AI Applications with LangChain and Node.js](https://www.wearedevelopers.com/videos/1512-building-ai-applications-with-langchain-and-node-js) · Julián Duque


## Links

- [X](https://twitter.com/julian_duque)
- [LinkedIn](https://www.linkedin.com/in/juliandavidduque/)