2. First I worked in other departments (also a civil servant), and later I was transferred to the tax bureau because of my work needs.
3. Government employees (there may be such employees in government positions that attract investment or technology) are contract employees, and their wages should be quite high, but they are not civil servants.
4, tax assistant (or input, tax assistant), is to sign a contract with the labor intermediary, has nothing to do with the country, specializing in routine, simple repetitive work, low income.
Our local taxation bureau recruits for the society every year, and it is not necessary to take the civil service examination to enter the government functional departments, and usually the academic qualifications are not very high. As long as it is a full-time undergraduate degree or above, some positions can be compared with computer maintenance or window tax collectors, and only a specialist is needed.
Anyway, you have to be full-time, and it's no use taking the self-study exam. . . .