About Diego Aguir Selzlein

I'm a developer who loves what he does. I like learning new things, mainly about technology. I spend my free time going to the gym, playing videogames, studying about new stuff and working on my side projects.

I am currently Helpjuice Inc's CTO and I live with my beloved fiancée in Foz do Iguaçu - PR, Brazil.

Here is a picture of her and me visiting Quebec - Canada.

Diego Aguir Selzlein and his fiancée in Montreal


I always liked computers. Even before I finished high school, I took programming classes and I enjoyed it very much. When college began, I already knew the basics of algorithms and it helped me a lot.

On my third semester of college (second year), I started my internship working with Delphi and Oracle. I finished it and continued to work at the same place for two more years.

On May 28th, 2010, I presented my final work to college and got approved. The next day, I started my post graduation at Software Engineering, and in the next day, May 30th, I turned 21. It was a very happy weekend. I had just finished my graduation and had already begun my post graduation.

On June 6th of that same year I attended to a public contest to work at a university in Foz do Iguaçu. Some weeks later, I gladly received the news that I had gotten approved. And here I am!

Since then, I've finished my post graduation and I've learned a lot (I mean, a lot!) by myself. My first contact with Rails was back in 2011 at Unila. I've been using it since then.


I'll list here the main technologies I've already deployed projects with.

  • Ruby on Rails
  • Ruby
  • Delphi
  • Java
  • Jquery
  • AngularJS
  • Bootstrap
  • MySQL
  • PostgreSQL
  • Shell Script