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WhatsApp scaled to 1B users with only 50 engineers

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Re: WhatsApp scaled to 1B users with only 50 engineers

#4
post #2

I remember reading they worked very hard to make their app available on many, many types of phones. Which is weird because they regularly announce they drop support for certain phone OS.

It made sense years ago... before the iOS/Android duopoly we have now.

Re: WhatsApp scaled to 1B users with only 50 engineers

#5
post #3

WhatsApp is a spy app of Facebook nowadays

That was its fate anyway.

Some things just can't really make money unless they do it in scummy ways (or we haven't found a viable alternative or a way to protect them).

Public instant messengers, public forums, public file hosting, public image hosting.

Re: WhatsApp scaled to 1B users with only 50 engineers

#8

I wonder if WhatsApp could be considered the most successful user-facing application with an Erlang backend.

What other candidates are there?

Facebook Messenger, if I remember correctly, was also originally authored in Erlang.

Re: WhatsApp scaled to 1B users with only 50 engineers

#9
This article does very little to explain how they did that. It basically states the type of tech they used (Erlang, FreeBSD and SoftLayer), and something about not trying to over engineer stuff. The title also makes it sound like 500 engineers would make it easier to scale up WhatsApp, which does not make too much sense either.

Re: WhatsApp scaled to 1B users with only 50 engineers

#10
post #5
post #3

WhatsApp is a spy app of Facebook nowadays

That was its fate anyway. Some things just can't really make money unless they do it in scummy ways (or we haven't found a viable alternative or a way to protect them). Public instant messengers, public forums, public file hosting, public image hosting.

With 50 employees their "please pay $1/year" model might have actually made enough revenue
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