Proofreading/editing_English text

First of all I am not a native speaker but I am in posession of the Cambridge Proficiency Certificate C2 (CPE) which basically stands for a more or less native level, so if you can't find one and you're still interested, do not hesitate to hit me up :)

hi i am really interested in your job post,i think i can do it better as im realy good in it..i can type really fast and i will deliver it before time. thank you.

Dear client, i an an experienced proofreader and it will be pleasure working with you