Full-scale backend: LAMP/LEMP, PHP (Symfony, Laravel, Zend Framework, Wordpress), Python/Django, PostgreSQL, MySQL, API, hi-load
Front-end abilities: Javascript/jQuery/React, Bootstrap 4/5
adm/devops: debian/ubuntu, freebsd, centos/stream, shell/bash, kvm/qemu/containers
Super-support and project management perks included :)
On Russian: https://career.habr.com/alekseyderyagin