Performing customer service [1], answering calls center, responding [2] to customer complaints, analysing  of marketing results to meet goals of sales in banking products sales goals, managing of executive reports and analysing of the information generated by the banking systems of concerning credit and operational areas, providing various information to customers of the regarding the products and services offered by the bank.

Cashier:

Do all Processing the bank’s own transactions, cash management and providing advice on banking products to customers [or: providing advice to customers on banking products].

[1] This point is problematic as it basically covers everything that follows

[2] As you started using the present participle, "answering", you need to stick to it, otherwise, although some of the points are not grammatically incorrect, they 'read' inconsistently with the rest.

Note: I've only corrected errors. In terms of overall style, you might want to consult a careers website to get a better idea of the requirements for a CV. The style of a CV is very subjective and varies between industries and countries.