These are some of the things I'm great at...
HTML and CSS
I write semantic html which maximizes readability and I effectively use CSS to create visually appealing websites.
Github
I am experienced with using git for version control both for individual as well as team projects.
Javascript
I write clean javascript that follows best practices.
Node JS
I use Node JS to create scalable web applications.
Mongo DB
I use Mongo DB to effectively manage, store and retrieve data
React JS
I use React JS to create fast,flexible, modular applications.