[akhilcacharya]

At Google it's very common to use the internal web IDE called CIDER.

At Amazon, some people use AWS Cloud 9 as their editor of choice but it's pretty uncommon in my neck of the woods.

[auvi]

Is the internal IDE based on this https://github.com/jordoncm/cider ?

[akhilcacharya]

No idea, but I'd guess not.