Who has worked as a railway secret agent? Is the work tiring every day?

I have a good friend who worked as a railway special agent at Changzhou Railway Station in Jiangsu Province in 2015. Now I have resigned. The salary is low, after deducting 5 insurances and 1 bonus, it is just over 3,000. There is no overtime pay, and I have to work on holidays. Morning shift, 8 am to 6 pm. Night shift, from 6pm to 8am the next day. 2 days of work and 2 days of rest. It seems like only the first half of a month, but the two days of work add up to 24 hours, and there are also evening shifts. Not great. The key is that Qian Shao was recruited by the Shanghai Railway Bureau. The treatment is really not good. That's it. It's not easy to find out for you. I hope you will adopt my answer.