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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

#41

Earlier quoted context omitted.

Back when he acquired twitter he fire 2/3rds the company.

@falcor84 We hit maximum reply lengths but yes there has been. And a massive security breach.

Which security breach are you referring to? I'm not aware of any major ones that have happened since the acquisition, but this one seems to be the one people point to even though it happened prior. https://privacy.twitter.com/en/blog/2023/update-about-an-all...

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

#43
post #21

Earlier quoted context omitted.

I think this idea hurts the industry. Don't get me wrong. I think it is important to hire the right people, but if you don't hire enough people this 3 man job is 80-100 hours a week per for months to years. Look how X has diminished in quality as Elon started slashing team sizes. Then when you design more features, security and other various systems to serve the customers it will creep in complexity. You can not esca…

Twitter most likely hasn't been able to retain the "right" people.

Only people that don't want to get deported during a tech hiring slowdown

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

#45

Earlier quoted context omitted.

I think this idea hurts the industry. Don't get me wrong. I think it is important to hire the right people, but if you don't hire enough people this 3 man job is 80-100 hours a week per for months to years. Look how X has diminished in quality as Elon started slashing team sizes. Then when you design more features, security and other various systems to serve the customers it will creep in complexity. You can not esca…

I have noticed absolutely no difference with Twitter/X. I am a casual user, sure, but for me it seems to work well.

There was a bit of downtime and some bugs did make it into their prod env after the restructure. These bugs were rectified fairly quickly too.

I generally agree with you on your comment. I am a casual user of X these days and the site seems to be humming along without any user facing engineering issues.

With his products such as Tesla, X and Starlink touching millions of people daily Elon is an easy to reach punching bag.

Even if he is somehow instrumental in solving the massive feat of putting humans safely on Mars there will always be people on the side lines having shots at him.

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

#46

Earlier quoted context omitted.

I think the interesting "what happened" is about the consequences - has there been some objective drop in uptime/performance/errors or some other technical metric?

Yes actually. And one massive security breach.

Could you be more specific?

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

#47

Earlier quoted context omitted.

I think the interesting "what happened" is about the consequences - has there been some objective drop in uptime/performance/errors or some other technical metric?

Yes actually. And one massive security breach.

Even before he acquired the company they had security issues. Someone even managed to tweet from his account with a BTC scam.

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

#49

Earlier quoted context omitted.

I think this idea hurts the industry. Don't get me wrong. I think it is important to hire the right people, but if you don't hire enough people this 3 man job is 80-100 hours a week per for months to years. Look how X has diminished in quality as Elon started slashing team sizes. Then when you design more features, security and other various systems to serve the customers it will creep in complexity. You can not esca…

I have noticed absolutely no difference with Twitter/X. I am a casual user, sure, but for me it seems to work well.

Anecdata for sure, but I use Twitter every day and features such as video upload just stopped working for me (failing silently), not to mention the site crashing or becoming completely unresponsive every week or so.

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

#50
post #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... This is against…

Looks like someone may have been using ChatGPT to produce that post.

Author here. No ChatGPT was used.

Just my own brain reading through old talks and articles from Instagram engineering and Excalidraw for the diagrams.

I did my best to put together all the info I learned from them into a comprehensive and simple manner.

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