My name is Andrei Kaleshka. I’ve been working with Ruby/Rails since 2009. Using this technology I’ve implemented many projects: SaaS applications, CMS and billing systems, API (REST and GraphQL), etc.
Apart the commercial commitment I’ve contributed to open source projects: Rails, Datagrid, Inherited resources, Devise, Sinatra, Rake, Enumerize, Homebrew, Cocaine, etc. See the whole list here.
I’m also the sole book author of Rake Task Management Essentials.
I would be glad to help with implementing an IT project of your dream. See my CV.