I have 18 years of experience with PHP and MySQL databases, 15 years with Linux administration, and 5 years with C and C++.
Other ocmpetences:
Operating Systems (Debian/CentOS)
Cloud Platforms (AWS, Google Cloud, Docker)
Backend Services (Apache, Nginx, SMTP, IMAP, POP3, LDAP, VPN)
PHP (Yii/Yii2/Zend/Symfony4/Phalcon3/Slim3)
RESTful APIs (JSON/XML)
Databases (MySQL/Redis/MongoDB)
Caching (Memcached/Redis)
JavaScript (jQuery)
CSS (2/3)