Design and implement a user interface (jQuery) using material design

I am looking for a skilled designer to make our web application look great. The project website is here: [login to view URL] We are currently a team of four, and you will work closely together with us. We are using Slack, Bitbucket, Trello, and Freelancer's built-in time tracking. The tasks include: Creating mockups, and implementing them with CSS and Javascript. What I expect: - Excellent design. Before I hire you, I'll need to see references of designs that you made and that you are proud of. - Very good Javascript skills. You will implement jQuery plugins, edit existing object oriented Javascript, and style it all using CSS and materializecss. I will also need references to Javascript that you have written (e.g. on Github). - You must know Git well, and love to use it. Our organization is built around it, and you should live the Git workflow: Make multiple commits per day, and be good at forking and merging. - Clear and efficient communication in English. - No teams. Other info: We are using Python/Django with materializecss 10 hours/week as a trial, and then 20 hours/week is a minimum, you are free to do more. This is not a side job that you can do while working full time.