Hi, I'm Yosef Kevin Yonathan, a freelance Ruby on Rails developer based on Indonesia (UTC +7). I have worked using Ruby on Rails since 2010 and now, still work with it extensively. Earlier, I usually used Rails 2.3.x and now oftenly use Rails 4.1. Whether you need to continue and enhance existing project or create new web application from scratch, I'm available to hire.
I am a full-time-freelance web developer with some professional experiences, focused on Ruby on Rails technology stacks. Currently I works on various project using Ruby on Rails and NodeJS.
I have developed some web applications from scratch with Ruby on Rails. Additionally, I also used some of popular gems such . . .
Before focusing on Ruby on Rails, I also have experiences in developing web applications with PHP and CakePHP in my earlier days as web developer. Still in relation with PHP, I also have experience to build web portal with Wordpress CMS. Almost of them are local sites in Indonesia.
My other specialties are working directly with SQL on those DBMS: MySQL and PostgreSQL.
Recently, I also just gained experience with NodeJS.