Statistician · Data Scientist
Building models and the
systems that carry them.
I'm Julián Úsuga Ortiz, a statistician working across machine learning, automation, and business intelligence. This site collects my writing on data systems, statistical analysis, and the tooling I build along the way.
- Focus
- Machine learning · BI
- Field
- Statistics
- Based in
- Colombia
- Writing
- 4 posts
Writing
RSS- 01
Designs That Don't Look AI-Made
A hands-on guide to DESIGN.md — grab the design system of Linear, Stripe or Vercel from a catalog, make it yours, validate it, export it to Tailwind, and have Claude Code build with it.
design claude howtoRead - 02
How to Use Claude Code
The compact October 2026 edition — setup once, CLAUDE.md vs AGENTS.md, the commands that earn their keep, subagents and mixing models, hooks, and a sane default workflow.
howto claude toolsRead - 03
Speed in Relational DB Management Systems
A comparative study of processing speed across three popular DBMS - SQLite, MySQL, and PostgreSQL - analyzing performance with text data using a multi-factor experimental model.
experiment dbms sqlRead - 04
Modeling Survival times in African countries using rstanarm
In this study we used a Bayesian Approach to model survival times of the people in different African countries.
survival analysis rstanarm bayesian approachRead
