1. Main service consultant: handle customer's consultation, feedback and complaints, and provide solutions in time. It is necessary to constantly learn and master the company's products and services and answer customers' questions.

2. Intermediate service consultant: provide professional advice to customers and manage customer relations. It is necessary to lead junior service consultants and cooperate with other team members to provide higher quality services.

3. Senior service consultant: lead the whole service team, provide professional consultation and solutions, and formulate service strategies. It is necessary to manage and train other service consultants and cooperate with other departments to ensure customer satisfaction and the realization of company goals.