Easy to find, at worst, you can find a desktop operation and maintenance, IDC room operation and maintenance, network operation and maintenance, database operation and maintenance, cloud computing operation and maintenance architecture, operation and maintenance development. The average salary is around 7000-8000. Among them, the salary of security operation and maintenance will be around 10k, which is slightly higher. Our company didn't want to give the old people a raise, so we hired a new person. Privately, I learned that it was educated and trained in old boys, and the salary was higher than our ordinary operation and maintenance. The main thing is that we won't be safe.