1. Architect: In the field of system architecture, SA is short for system architect. The system architect is a technician, who finally confirms and evaluates the system requirements, gives the development specifications, constructs the core framework of system implementation, clarifies the technical details and clears the main difficulties. Mainly concerned with the "technical realization" of the system.

2. Sales consultant: In the field of sales, SA is the abbreviation of sales agent or sales consultant, that is, sales agent or sales consultant. The main responsibility is to sell the company's products or services to customers through communication and negotiation with customers, and at the same time provide relevant advice and suggestions to customers.