https://remotelyawesomejobs.com/job...

Looking at the "ideally you should" sections doesn't make me feel this is a junior position:

You are passionate about making data useful to the lay-person, there is no data you couldn’t derive visual meaning from. D3.js is your go to and Canvas is your friend. 

You build components in your sleep, rock solid and performant using atomic design patterns.

You bend CSS processors to your will or throw them out and code by hand.