What kind of engineer does Facebook want to hire?

Andrei Alexandrescu, Research Scientist of Facebook, answered:

“First and foremost, the ideal Facebook engineering candidate should be good at coding.

We do care about one’s ability to code; code is quintessential for us, for engineers from front-end to back-end to system configurators to researchers.”

He gave an example. When you choose C/C++, a good warmup question is “Implement strstr()”.

The canonical solution looks like this:

char* strstr(char* haystack, char* needle) {
    for (;; ++haystack) {
        char* h = haystack;
        for (char* n = needle;; ++n, ++h) {
            if (!*n) return haystack;
            if (*h != *n) break;
        }
        if (!*h) return NULL;
    }
}

He also listed other requisites:

The ideal Facebook engineer is a great hacker, a strong generalist (and in addition possibly exceptional depth in some area), and an adaptable person comfortable working in small, fluid teams.

THE END

One thought on “What kind of engineer does Facebook want to hire?

  1. Hey I know this is offf topic but I was wondering if you knew of any widgets I could add to my blog that automatically tweet my newest twitter updates.
    I’ve been looking for a plug-in like this for quite some time and was hoping maybe you would have some
    experience with something like this. Please let
    me know if you run into anything. I truly enjoy reading your blog and I
    look forward to your new updates.

    Feel free to surf to my homepage; greater flamingo south africa

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>