Photo of Aaron Lasseigne
Hi, I'm Aaron Lasseigne.

I'm a software developer, an open source maintainer, a Ruby group organizer, and an author.

Cover for Mastering Ruby: Strings and Encodings
become an expert

Strings are one of the most prolific objects in any language. We use them to display data but they also end up representing other values in our JSON and in our databases. How well do you really know them?

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Hear me discuss strings and encodings on the Ruby Rogues podcast.

About Me

During the course of my career I've done a lot. The bulk of my professional experience has focused on Ruby (Rails) and JavaScript (React). However, I'm an avid learner and have experimented with many other languages on my own time. I've played every role on the team from developer, to project lead, to manager. I've maintained and updated legacy code and I've taken greenfield projects from start to finish.

You can find out more about my background on my LinkedIn profile. You'll also find some of my open source work in the Contributor section below.


I enjoy helping the programming community when I can. I've been a regular attendee of the Dallas Ruby Brigade for many years and I now help run the group. During that time, I've presented many times on a variety of topics and helped others to ready their first talks. I've also volunteered for Rails Girls, presented to high school students on software development as a career, and sat on the computer science advisory committee for Brookhaven College.


I created ActiveInteraction with Taylor Fausak to provide Rails with service objects that fit seamlessly into the existing ecosystem. It currently has over 1.8k stars on GitHub.

Tables of Stuff

Built using React on top of Middleman, Tables of Stuff provides easy to search tables for a variety of character encodings. Check out the ASCII table for an example.


In addition to by book I've also been blogging since 2012. It has helped me grow as a developer and provided another avenue for me to help others learn. I've been in featured in Ruby Weekly numerous times including the top spot for an article covering new methods in Ruby 2.2 which was re-tweeted by Matz (the creator of Ruby). I've had articles appear on the Ruby5 podcast, Ruby Inside, and a variety of other sites. On occasion you'll find my writings on Sitepoint.

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  1. My Best Career Move

    A Dallas Ruby Brigade meeting with a speaker talking to a room.

    When I first started going to the Dallas Ruby Brigade (DRB) I was silent. I might as well have been invisible. A fly on the wall. I didn’t want to embarrass myself.

    At the time, I was working in Perl and PHP and I wanted out. I tried a few languages and found myself really enjoying Ruby. I wanted to learn more about it and this group could teach me. I wanted to teach and present and this group could watch me. I wanted a job doing Ruby and this group could get me hired.

    I also knew that to do these things effectively I’d have to network. You can’t network if you don’t talk.

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