BackEnd

PHP

MVC, PSR, Composer, Bitrix Framework D7 (ORM), Symfony, Laravel, Redis.

SQL

MySQL.

FrontEnd

HTML

HTML4-5, XHTML, XML, XSLT, HTL.

JS

JS5-6, React, JQuery.

CSS

CSS3, LESS, SCSS, PostCSS.

DevOps

Servers

Nginx, Apache.

CI/CD

GitLab CI, Azure DevOps, TeamCity, Jenkins.