Details are important. For example, my eyes immediately jumped to "how does / look like" in your very first sentence. I just interviewed a guy who Capitalized r

Details are important. For example, my eyes immediately jumped to "how does / look like" in your very first sentence. I just interviewed a guy who Capitalized random Words on his resume, used (TM) after every product name (half of which were spelled wrong), etc. It's a bad first impression, but it doesn't make me round file the resume. So definitely, proofread it yourself, have a grammar nazi proofread it, etc. Your eyes will completely miss mistakes you made -- and not because you don't KNOW they're mistakes, but because you know the content you wrote, and what you MEANT to say, so your eyes won't even see the error, even if they'd easily spot it on someone else's. Unfortunately, this works against non-native English speakers, but that's all the more reason to seek out help if you need it, to put a non-native speaker on the same footing, to begin with, as a native. Interestingly, the guy was a 180 degree opposite from what I expected based on the carelessness on his resume and the person who referred him. In the end, he still wasn't anywhere near up to my expectations, but, again, details.