Jesus LM

Economist & Data Scientist

About me

I’m a professional with +10 years of experience applying data analysis in sectors like public security, e-commerce, and healthcare. Passionate about creating tools that make data accessible and impactful. I primarily use SQL, Python and Tableau.

Background in Economics (BA), Information Technology (MA) and Data Science and Machine Learning (Certification).

Committed to fostering data literacy, I share some data posts on Learning Data and T3CH via Medium.

Data as Code Philosophy

With a background of economics and data science, I advocate for a Data as Code approach. While traditional BI tools (like Tableau or Power BI) are useful for quick visualizations, they often create information silos that are difficult to version-control, audit, or automate.

My workflow is built on 03 core pillars:

  • Reproducibility: Whether it’s a executive report or an economic forecast model, the path from raw data to final insight must be scripted and version-controlled via Git. If a result isn’t reproducible, it isn’t reliable.

  • Modern Data Stack: I leverage high-performance tools like DuckDB and Polars to process large datasets locally and efficiently. This reduces infrastructure costs and allows for “BI-as-Code” using frameworks like Streamlit or Shiny.

  • Narrative-Driven Analytics: Data is only as good as the story it tells. I elaborate statistical analysis with clear, executive-level prose documents and slideshows, ensuring that technical findings lead to actionable decisions.

IT Tools

Databases

  • Duckdb
  • Snowflake
  • BigQuery
  • Postgresql
  • MySQL
  • Oracle
  • SQLServer

Python libraries

  • polars
  • pandas
  • plotly
  • scikit-learn
  • folium
  • streamlit
  • shiny

Other

  • Tableau
  • Power BI
  • Evidence.app
  • MS-Office (Word, Excel, Powerpoint, Access)
  • Google Apps (Sheets, Docs, Slides, Forms, Gemini, etc)
  • Jira, Trello
  • Git, Github, Bash

Mexico City Crime Visualization

Mexico City Crime according to the Official Stats. Issues and Figures, 2019-2024 Available at: https://j3susl-monroy.evidence.app

Mexico City Crime according to the Official Stats. Issues and Figures, 2019-2024
Available at: https://j3susl-monroy.evidence.app

Python SQL bash