Position: Senior Software Engineer. Tech Lead.
Category: Node.js
English level: intermediate
Years of experience: 11

Design, development and support the scalable high load distributed realtime bidding system (RTB) for advertising (more than 30 servers). Support various ads format (banners, native, popunder, etc). Collection and aggregation of large volumes of statistics. Monitoring of system and business data. (Node.js, PHP)

Development and support of the dropshipping system. (PHP, Node.js, Symfony, Puppeteer, Vue.js) 

Development of a modular project management system. (PHP, Symfony)

Webhosting sale and domains registration automation. I designed and launched a multisite billing system, helpdesk system, integrated many payment systems, control panels, registrars, etc. 
(PHP)

Have some expirience in Java, C and C++.
Development and design experience > 20 years. 
Node.JS, PHP, JavaScript, MySQL (MariaDb), Vertica, PostgreSQL, Clickhouse,  MongoDB, Memcache, RabbitMQ, mercurial/git, TDD (mocha, nodeunit, phpUnit), Linux, grunt, C/C++, Java, Perl.
Design and development highload scalable systems.
Node.js, Php.