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How Instagram scaled to 14 million users with only 3 engineers

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Re: How Instagram scaled to 14 million users with only 3 engineers

#7
> we can assume that Instagram was written using Objective-C and a combination of other things like UIKit.

How can they know the internal infrastructure but have to assume the app language?

Edit: So the entire piece is taken almost verbatim as-is from a couple old articles on instagram engineering blog.

It might as well just redirect to: https://instagram-engineering.com/what-powers-instagram-hund...

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