Multiple products targeting multiple users, both internal and external.
Let's say that each product dev team is about 80 engineers. Let's double that number for support, HR, admin, etc. Let's add a team of 10 people for sales ( not needed for internal products but hey)
Now let's round it up to 200 heads.
That would make 50 large software products, is that right?
I.e. a team that is working on only Facebook Messenger back-end, a team working on Facebook Messenger Front-end, a team working on Friend Recommendation, etc.
Each of these teams is let's say 10 Dev, 2-4 QA, 1 Product Documentation, then all the normal overhead of HR, etc.
I feel like most of you all are unaware of the complexity and scope of Shopify...
The former had some stressed principal engineers, the latter was terribly inefficient and people had 1% productivity.
There is a happy medium, but nobody can manage a large headcounts without splitting in a lot of tiny products.
The core product of shopify is not something that needs 10k engineers for maintenance, even if they can afford that.