**Ruby**(v2.3 until current)
**Rails**(v4 until v7)
**Javascript** Currently using ESBuild with Stumilus
**SQL** at the moust powerful and productive way usgin rails polymorphic.
Official Style Guides
Real Time Features
Async Background Jobs
Micro Services
Any Integrations
SOLID
Agile
TDD
BDD
API's REST/RESTful
Hotwire
POO
MVC
Authorization (All Devise features on navigational_format and json API JWT)
Authentication
Linux/Windows/Mac
Docker
CRM's
Saas's
.csv
.xml
.xmlsx
HTML5
C++
PHP
[.CSS, .SCSS]