1. The examiner's main job is to examine whether the patent application documents submitted by the applicant meet the statutory requirements and decide whether to authorize them;
As far as I know, the salary is the basic salary plus commission, and there are workload requirements every month, and in many cases there are commissions. It may be less at first, but it should be more than 6 thousand or 7 thousand. As for the upside, it's hard to say, it varies from person to person, but the leaders of the National Intelligence Agency, including the director, have all been examiners.
As for the preparation, if there is one now, I personally feel that it is unlikely that the examiners in Beijing will change jobs.