Professional requirements, you'd better study finance, be familiar with the compilation and publicity of EXCELL, and then learn simple data such as social security and individual tax. This general personnel and other people in charge of social security will give you the payment data.
Prospects? It depends on the company. If this company attaches importance to human resource management and is willing to study performance pay as a discipline, your future is bright. If not, you can count it as salary.
Whether you have been an administrator or a small company, you should be confident and cheerful. Try it, come on ~