Aleksandar started doing web-development in 2009. He is experienced in various data visualization tools like R graphics, ggplot2 and d3.js.
Frontend development is his expertise (Angular, React, Bootstrap) but he works in backend development (Ruby on Rails, Ruby, Node.js, PHP) as well as JSX, Node.js, jQuery, Lodash, Webpack, Grunt, Gulp, Git, Gitflow, CSS, Sass, LESS, SMACSS, BEM, GNU/Linux, Zsh, Bash, UNIX tools