@raycoms here is my entry
The logo comprise of < > and [] since this are one of the most widely use programing language for java script. The description of the logo is based on two individual making successful effort to ensure a successful project. As two is better than one, which i believe is what your project is also all about. If you want any adjustment i will be glad to make it happen as soon as possible.

Here is a preview of it favicon version on chrome browser via pc.

https://steemit.com/utopian-io/@davidmind/logo-proposal-for-let-s-dev-together