Front End Designer (Google Extension)

We need an expert front-end designer who is able to design google extensions. You have to expert on google extension design.

Here is the reference extension that we want to design-
https://chrome.google.com/webstore/detail/lusha-easily-find-b2b-con/mcebeofpilippmndlpcghpmghcljajna?hl=fr

Only apply if you are truly an expert and designed Google extensions before.