Operating systems - Mac OS X Lion, Mountain Lion, Mavericks, Yosemite, El Capitan - Ubuntu - Windows XP/Vista/Seven/10 Programming languages - Ruby: work experience - 5 years (1.9.2+, 2.0-2.2, jruby 1.7.0+) - PHP: work experience - 5 years - Borland Delphi v.5-7: work experience - 3 years Database management systems - MySQL: work experience - 5+ years - PostgreSQL: work experience - more than 1 year - MongoDB: work experience - more than 1 year - Oracle 8i, 9i, 9.2: work experience - 1 year (queries, joins, tables structure, some PL/SQL and triggers) - Interbase/FireBird: work experience - 1 year Versions control systems - Git & GitHub: work experience - 5 years - SVN: work experience - 1.5 years

Senior Ruby/Ruby on Rails Developer @ From January 2015 to Present (1 year) Berlin Area, GermanyRuby on Rails Team Lead @ From January 2014 to January 2015 (1 year 1 month) Ruby on Rails Team Lead @ From August 2013 to January 2014 (6 months) UkraineRuby on Rails Team Lead @ From August 2013 to January 2014 (6 months) Ruby on Rails developer @ From June 2012 to August 2013 (1 year 3 months) Ruby on Rails developer @ From June 2012 to August 2013 (1 year 3 months) UkraineWeb Developer @ Payment systems & banks' payment protocols integration, reporting & automation. From May 2011 to June 2012 (1 year 2 months) Ruby on Rails Developer @ From September 2010 to April 2011 (8 months) Web developer @ From December 2009 to September 2010 (10 months) UkraineSales & workflow automation manager @ From October 2008 to July 2009 (10 months) UkraineCEO @ From September 2005 to August 2008 (3 years) Ukraine

specialist, automated systems software @ Open International University of Human Development "Ukraine" From 2001 to 2006 Alexander Svirin is skilled in: Ruby, Ruby on Rails, MySQL, PostgreSQL, MongoDB, RSpec, Test Driven Development, OOP, jQuery, CoffeeScript, CSS, HTML 5, CSS3, AngularJS, HTML