[twunde]

It's a lot easier to get your foot in the door when you're coming from a Google/FB/etc. In general, there's a presumption that you have been exposed and followed good practices and have a fairly strong technical background, although it's worth double-checking on some of those. More importantly, if you've worked for a company that I know follows bad practices or where other candidates I've interviewed have really flopped, you'll be tested a bit more than normal. There are really very few of the latter thankfully.