Ariel Barreiro

Systems engineer Tech lead Software architect DevOps Drupal

I’ve been building for the web for over 23 years, most of them leading Drupal projects end to end: architecture, environments, infrastructure, deployment and code. I design systems, build the tooling teams work and ship with, and stay hands-on in the code.

I’ve worked as a developer, tech lead, architect and DevOps engineer for agencies and clients in government, e-commerce, media, education and non-profits. I’ve contributed to open source since 2005: I created 35+ modules on drupal.org and contributed 30+ merged PRs to DDEV. These days I focus on reproducible environments, self-managed servers, edge deployments and AI-assisted development with agents.

Download CV github.com/hanoii drupal.org/u/hanoii

Argentina · UTC-3

Technical knowledge

AI

Claude/Codex/Openrouter
Skills
Caveman

DevOps & infrastructure

DDEV, Docker and Docker Compose (OrbStack, Mutagen)
Linux servers (Debian), Traefik and private Docker registries
Docker Compose deployments on self-managed servers: releases, rollbacks, secrets and per-PR environments
Platform.sh, Acquia, Pantheon, DigitalOcean and Railway
Cloudflare: Workers, Pages, DNS
CI/CD with GitHub Actions: per-PR environments and deploys
Automation with shell, Go, Task and Ahoy

Open source

Drupal: 35+ modules created since 2005 (drupal.org/u/hanoii)
DDEV: 30+ merged core PRs (hooks, multi-stage Dockerfiles, version constraints) and add-ons like ddev-sshd
Drush, Platform.sh CLI and docs, Ahoy, Starship
Upstream reports with root-cause analysis, like the docker exec umask regression in Docker 29.6

Frameworks/Libraries

Drupal - drupal.org - PHP/mySQL Web framework (+21 years)
Wordpress - wordpress.org - PHP/mySQL Web framework (+3 years)
PEAR - pear.php.net - PHP framework (+3 years)
wxWidgets/wxPython - wxpython.org (+2 years)

Programming languages

PHP (+23 years)
JavaScript/TypeScript with Node.js/Bun (+6 years)
HTML5/CSS3/JS/jQuery/AJAX (+23 years)
Go (+4 years)
Bash/shell scripting
Python (+4 years)
years agoC (+7 years)
years agoC++ (+3 years)
years agoVisual C++ (+3 years)
years agoJava (+2 years)
years agoAssembler (+3 years)
years agoVisual Basic (+3 years)
years agoASP (+2 years)

Platforms

MacOS
Linux/Unix
Windows
years agoPalmOS, Windows CE and Pocket PC
years agoJava/J2ME

Programming

MySQL and PostgreSQL databases
TCP/IP (Client/Server applications)
Cryptography
Debugging and troubleshooting (Xdebug, gdb, browser devtools)

Development tools

Git, SVN, CVS among others.
Visual Studio Code
gcc/gdb on Linux

Archive · 2004-2007

K-Mojo, a LANC remote for helmet cameras

In my early twenties, while I was skydiving myself and long before AI tools, I reverse engineered Sony's LANC protocol to build K-Mojo, a remote control for helmet cameras, as a side income. Similar products already existed, so I set mine apart with extra features. I wrote the firmware in assembler for an 8-pin PIC microcontroller and handled every step of the product on my own: building and soldering each unit, debugging, casing, the manual, the website, marketing and shipping. I sold about 60 units to customers around the world, and in 2007 I released the firmware and parts list as open source.

Visit the Techno Dropzone archive

Preserved as it was, Flash included.