JMVJuan Manuel de Villeros Español

Medellín, Colombia

About

Juan Manuel de Villeros Arias · in IT since 1988.

Juan Manuel de Villeros, smiling, under a tree in yellow bloom

Bio

It all started on a Tandy Color Computer, writing a starfield flight simulator in BASIC, until Elite II appeared and I played it instead.

My IT career began in 1988 with inventory systems and Xenix utilities, followed by more than two decades in IT infrastructure: Unix and Linux systems, databases and networks. I retired in 2014, and in 2022 machine learning and AI brought me back.

Now I spend my retirement playing and creating games and building with ML and AI: Python data tools for water and sewer engineering, Android games with Flutter + Flame, open-source methods and AI agent skills, all running on Google Cloud and my own Linux servers. I have used Linux since the Slackware days and design AI-assisted workflows with human approval for anything public or irreversible.

Timeline

  1. 1988

    Helped migrate COBOL applications from VAX to SCO Unix; inventory and utility software for Xenix.

  2. 1991–1994

    Clinical-lab analyzer communication in C under Xenix; ACCELL/4GL standards; wireless handheld terminals.

  3. 1995–1999

    First Informix database platform, migrating from a legacy COBOL system; first Windows Server platform.

  4. 2000–2003

    First AIX and AS/400 platforms; wireless network migration.

  5. 2007–2008

    Corporate VPN links with open-source tools; legacy SCO virtualized on VMware over Linux; migration to Linux.

  6. 2014

    Retired.

  7. 2022–today

    Machine learning and AI bring me back: data tools, AI agents, games and cloud infrastructure.

Tools I use

  • Python
  • Streamlit
  • pandas
  • C
  • Kotlin
  • Dart
  • Flutter
  • Flame
  • Bash
  • n8n
  • Ollama
  • PostgreSQL
  • Docker
  • Linux
  • Google Cloud
  • Proxmox VE
  • VMware
  • Git / GitHub

Education

Systems Engineering, Universidad EAFIT, 1988–1995 (coursework completed).