Data Journalist · Analyst · Builder

Jeffry
Arevalo

Data analyst by training.
Journalist by instinct.
Builder by nature.

About

Hi, I'm Jeffry Arevalo, a data journalist, analyst, and builder. I work at the intersection of data investigation, AI automation, and software development, building tools that extract insights and publishing what I find.

My work spans in-depth data investigations like The AI Race and The K-Shaped Economy, alongside building AI-powered automation systems and software projects. I am drawn to questions where the data reveals a story that the headlines miss.

When I am not investigating data, I am building systems on my Projects page or writing analysis on my Publications page.

Skills & Focus Areas

Data & Analytics

  • Python
  • SQL
  • Pandas
  • NumPy
  • Tableau
  • Power BI

AI & Automation

  • LLMs / Prompt Engineering
  • Claude / OpenAI APIs
  • n8n
  • Zapier
  • AI Agents

Software Development

  • JavaScript / TypeScript
  • Astro
  • React
  • Node.js
  • Git / GitHub

Data Journalism

  • Investigative Research
  • Data Storytelling
  • Interactive Visualizations
  • Source Verification