What are the two core positions in a restaurant?

Personally, they are: general manager and chef.

the general manager is the highest person in charge of the company's business execution. In fact, the level where the general manager is located will still be different due to the size of the company. For example, in general small and medium-sized enterprises, the general manager is usually the highest-ranking manager and person in charge in the whole organization, coordinating the affairs of various business departments. In large-scale organizations, such as multinational enterprises, the role of general manager is the highest person in charge of a related enterprise, institution or branch.

CHEF, abbreviated as Chef in English, is the leader of the management department of the hotel kitchen. He is mainly responsible for the daily management of the wok and the high-standard control of all the dishes in the kitchen. He is required to have the experience of wok or supervisor in the big catering industry, as well as the ability and skills of kitchen management.