Thank you very much.
According to what I've checked, remisier and dealer's rep do trading on behalf of their clients, am i right?
and, I found a company called NGS Analytics who's providing job like PDT with only commission and not basic salary, just wondering if you know that is this legit/legal?
Besides, I am also wondering what else company has a better career development in this sector? (and also is there any companies in Malaysia who trade US Stock?)

I know there's a lot of questions. I am sorry about that and really appreciated if you or anyone experienced could help this newbie (me) out! Thanks!