Frontend skills

Angular

Good understanding, basic practical experience

Javascript

Great theoretical knowledge, basic practical experience

Sass

Competent enough to significantly speed up app styling

jQuery

Good knowledge of the library, including traversing, animations and jQuery AJAX

CSS3

Modern CSS: advanced selectors, animations, pseudoclasses, flexbox and media queries

HTML5

Clever use of HTML taking into account repeating patterns in design

Bootstrap

Know major CSS and JS functionality of the framework