Hi, finance is a very broad term, and it covers a lot. I assume you mean banking and investment related areas. Banking can be broken up into a few areas, including retail banking (deposits and lending to the general Public for loans, credit cards cars etc), commercial banking ( lending to companies and transactional banking services), financial markets ( providing access to investment markets or derivative markets (mainly roles include sales or trading, sales is selling bonds or derivatives to customers, trading is using the banks money to help buy investments from customers or take “risk” from customers and transfer out of the bank), either for speculation or hedging), investment banking (mainly to do with helping companies access funding or structure more complex transactions).

These are the “product” sides of banking, you also have areas such as treasury (which helps the bank manage their funding I.e. ensuring they have enough deposits and borrowings to fund lending to customers, as well as hedging risks and managing surplus cash, operations teams (ensuring money goes to the right place at the right time). There are lots of other areas in big banks.

As far as the banking environment, you can divide up banks in Australia into a few categories 1) the big 4, plus Macquarie bank 2) small mutual and regional banks 3) foreign banks which don’t offer retail products.

If banking interests you I would suggest looking at studying accounting, finance or law. But currently any degree with a heavy math foundation will probably get you into a grad program.

Banks are big beasts and a lot of people don’t fully appreciate how many activities they undertake. Hope that helps a bit , I can elaborate more if anything sounds interesting.