Brian González Beltrán
AI & Data Engineer · Bogotá, Colombia

Industrial Engineer from Universidad de los Andes with 5+ years building data systems across banking, fintech, and the public sector. Currently focused on AI Engineering — shipping production LLM applications, analytical pipelines, and agentic systems on self-managed infrastructure.

Everything on this site is live, built end-to-end, and running on a single Oracle Cloud ARM server.

RAG Question-Answering API

Retrieval-augmented generation system that grounds LLM responses in real documents. Embeds and indexes documents into a vector store, retrieves relevant context at query time, and generates answers with source attribution.

FastAPI · ChromaDB · Ollama · phi3:mini · nomic-embed-text

LLM Chat API

FastAPI service wrapping a locally-hosted language model through a REST endpoint. Handles prompt engineering, async requests, and timeout management for production-grade LLM serving.

FastAPI · Docker · Ollama · phi3:mini

API Health Monitoring

Production alerting system for the Bogotá Secretariat of Economic Development. Detects external API failures in geocoding and identity services, sends automated email alerts via webhooks before users notice.

Python · n8n · Webhooks · YAML

Languages

Python, SQL, PySpark, R, VBA

AI & Data

FastAPI, PostgreSQL, ChromaDB, Ollama, Snowflake, Power BI, RAG, MS Fabric

Infrastructure

Docker, nginx, Linux, Oracle Cloud, n8n, Git, Databricks