Strong experience with JavaScript (object oriented, functional, expert knowledge of browser/APIs, etc.)
Strong experience with common front end languages such as HTML5, CSS3
Practical hands-on experience with web based JavaScript libraries, frameworks, and engines such as Vue.js, React, AngularJS, Polymer, ES6 / ES7, etc.
Strong opinions on technology and software design to bring to the table
Strong programming skills including software engineering methodologies and best practices
Proficient understanding of code versioning tools, such as Git