More than 6 years of drupal 6,7,8 experience (related technologies: php5, jquery, javascript, html5, css, sass, less, responsive design and etc.). My experience and skills is not described here fully, please ask about necessary skills or experience in conversation, I think, I will have this skill or experience too, but describe briefly the main: I developed CMS part of site Aeroflot company, knowledge management system and learning management system for TELE2 operators call centers, complex logic for prediction market and gambling site with bids on current events in real time and integration with many payment gateways, full stack of processes for airlines ticket system (integration with Amadeus, Sirena and Traveport systems, complex system reports for sold tickets, real time evaluation tax and commission, etc.) I will be glad to help you with any problems.