Keep in mind that Google and Amazon did hire a lot of MS employees (especially Google at Kirkland) a few years ago. I'm sure they're still opening their door for MS employees. I'd take Google or Amazon mindset than a cocky startup.
Don't sweat over your 5-6 years experience at MS especially when your case is "special", you work at Bing and probably you work from the beginning until you launched. 5 years is not a long time to launch a product like Bing.
In fact, you should be proud and feel a bit more comfortable with your resume so far. 5 years show determination, loyalty, and hard work. Like any other poster said, if a startup didn't like your resume because of your experience at MS, you wouldn't like them anyway.
I've seen people who just talk about "how bad MS products" are after a link from Reddit/Digg showed up but they don't have anything to prove themselves.
Good luck with your decision whatever that is and keep your mindset in a neutral zone.
Google or Amazon are nothing like a startup, particularly a small one. We don't have time for 6 months or a year of ramp up time; instead, we need people to come in and start being productive far sooner than that. As I said upthread, this isn't insurmountable, but someone with 5 years in on .NET is going to have a rough transition to a rails/django shop.
Don't sweat over your 5-6 years experience at MS especially when your case is "special", you work at Bing and probably you work from the beginning until you launched. 5 years is not a long time to launch a product like Bing.
In fact, you should be proud and feel a bit more comfortable with your resume so far. 5 years show determination, loyalty, and hard work. Like any other poster said, if a startup didn't like your resume because of your experience at MS, you wouldn't like them anyway.
I've seen people who just talk about "how bad MS products" are after a link from Reddit/Digg showed up but they don't have anything to prove themselves.
Good luck with your decision whatever that is and keep your mindset in a neutral zone.