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Front End Engineer Interview



Signed NDA. But phone interview questions were same as mentioned many times here: flatten array, optimize a function, implement a simple Observable.

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3 Answers


Was the architectural have to do with a trie or hash table?

Jane Doe on


VanillaJS (important!), basic JS data structures including ES6 ones, their usage nuances (what?/when?/why?), at least basic algorithms (array sorting, tree traversal), big-O. Not sure about HTML/CSS; as some noted, that there were also non-JS questions, but my phone interview was focused on algorithms, DS, and big-O.

Anonymous on


Architecture interview supposes more high-level questions, where you need to operate several areas, like JS and DOM, browser performance, etc.

Anonymous on

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