ARG Systems is software development & consulting company based in Kharkiv, Ukraine. Our services include: Ansol ltd - gas & oil international company. We have developed a ERP system for their metal production using Java ( Vaadin, Hibernate, EJB 3.2, MySQL ). Interneturok - Russian largest eLearning startup. In scope of our collaboration, we have developed a learning management system for high school graduates as well as coursera analogue for university students. We used Ruby on Rails, Node.js and Angular.js. Our software helped them to evlolve from startup to large company which helps thousands of russian students to learn and pass United State Exam sucessfully. Factor - large Ukrainian company group which including consulting and audit companies, publishing house, printing house, etc. We've developed a commercial webinar platform using Ruby on Rails and Angular.js. Taxi Ritm - one of Moscow's largest taxi services. We've developed a software complex for them which include server-side application used by operators, administration and service partners and two moblie applications, one for drivers and other one for passengers. We have used Java EE ( EJB, JSF, JPA), PostgreSQL and WebSockets. Such complex enabled them to raise their revenue in 30%! Mars Discovery District - Canadian corporation which helps local entrepreneurs to start up business in technological area. We have developed their website using Wordpress.