I live in Taiwan where Foxconn is based and have been studying Chinese for 4 or so years here. Learning Chinese is totally doable if you're prepared to put in a couple of years of work... It helps to live somewhere Chinese is spoken. What city are you in where Foxconn was hiring?
Putting English names into Chinese is tricky... Just approximating the sound with any old character that has a similar sound is not a good idea.Letting a native speaker help you pick a name is a must if you're going to use it for business, visa paperwork or a tattoo...