First of all, your company should apply for opening an account at the county social security center where the business license is registered, and then apply for opening a card at ICBC (that is, the social security payment card, which will be used in the future). Then you have to go to the employment agency (recruiting Shanghai residents or talents to introduce residence permits) or the foreign management office (recruiting employees from other provinces and cities) to go through the employment procedures, and then go to the county social security center or the foreign management office to go through the new or transfer procedures (you can also operate it on the social security service website).
The social security department will mail you a payment notice the next month, and your company will pay the relevant money into the payment card according to the amount on the notice.
In addition, if you are the manager of the company, I suggest you attend the free business training of the social security center.