Position: Ruby Developer
Category: Ruby
English level: pre
Years of experience: 5

In a short time mastered NodeJS and for a long time supported and developed high load written on it. I worked simultaneously with NodeJS and Rails projects.
Ruby (Rails, Sinatra, Grape)
NodeJS (express)
MySQL, MongoDB, Redis, memcache
RSpec, TDD, BDD
JavaScript (jQuery, native)
HTML&CSS (Grunt, Bower)

Developed with Rails 4 highload system in sphere of digital-advertising. Also supported the work of this system, written in NodeJS. Working with a large number of frequently updated data received from MongoDB. Build complex SQL queries without the use of ORM. Working with frontend, JavaScript.

API development for the project in real estate, used ruby framework Grape.

Also I have experience with the framework of Sinatra, ruby gems development experience, extensive experience with social networking API (Facebook, Google, VKontakte, Yandex etc.)