I want to look for a job in Investment Bank.

i bank 好辛苦架喎...雖然搵到好多錢...你考慮清楚未呀？
同埋好難入，你係咪1st honor 先？2nd up嘅話...可以試下嘅
認唔認識/有無興趣/background係金融投資方面呀？

Find some bank's e mail or the physical address
then write a cover letter and CV

then send it to the bank as you want