9000 external auditors are not very popular now. After all, there are too many organizations that are doing well now, and you have to have a good relationship with the inside and outside of the organization (after all, the certification company decides who to send, and the enterprise can also choose auditors). Generally, about two weeks a month, it should be even. Some people can't even complete the task, which is very sad to say. . . However, if you have the ability, you can give lectures to enterprises and do consulting secretly, which will be more.
900 1, 1400 1, 1800 1 and so on are all expired. I have time to study 2700 1 and SA8000. After all, this is just emerging now, and there are few works in China.
Well-known, DNV, SGS, BSI and UL are relatively large companies, and Guangdong Saibao Certification Center is also good.
However, these institutions rarely recruit full-time auditors now, and most of them are part-time.