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Digging through Strobelight and Scuba traces, a performance engineer at Meta filtered on a specific std::vector call and spotted an unexpected deep copy hiding behind the innocent-looking auto keyword. The culprit sat in one of the company’s busiest Ads service paths. Swapping auto for auto&—a single ampersand—eliminated the copy and is projected to free up the equivalent of 15 K servers annually. A reminder that even trillion-line fleets can hinge on one character, and profiling tools still pay for themselves many times over.

What were your favorite Online Course/Tutorial released in 2023?

It has to be Andrej Karpathy's Let's Build GPT: https://www.youtube.com/watch?v=kCc8FmEb1nY

With so much happening so suddenly, what are you reading to make sense of the Economy and markets.

How are you using Firebase for your startup?

I wanted to know when companies say "Are you authorized to work in the US", do they mean if I will require future visa sponsorship?

I am authorized to work in the US, but I will require visa sponsorship. I am sure there are others who are confused about this.

There is an overwhelming amount of resources available for learning - books, tutorials, MOOCs, online paid subscriptions, documentation, conference talks. If you are juggling between multiple resources and learning multiple technologies at the same time (R and Python or HTML and CSS), what is a good way to keep a track of your learning and progress?

How are software engineer salaries in New York compared to San Francisco at the moment?

What industries are most lucrative for jobs besides finance for software engineers?

If you have a budget of $1,200 for a year, how would you spend it to get the most out of it?

What mode of communication (LinkedIn InMail, Facebook Messages, email, phone or something else) do you use when trying to build your network? What general advice do you have for someone who is starting to grow their professional network?