Interns recruited by securities companies generally work in the sales department, and headquarters and functional departments generally do not recruit interns because of confidentiality and firewall. Internship in the sales department, the business is relatively simple, mainly counter business, product sales and customer management. The more technical ones are investment consultants, mainly investment consulting and guidance.

Your major is very good. For the recruitment of securities companies, you don't pay much attention to where you practice, but more attention to your education, your experience and your ability. Mathematics major now has an advantage in securities companies, so it is necessary to quantify investment and derivatives business. If you work hard in this direction, it will be easier to find a job.

If this is the direction, I suggest you pay more attention to how to do a good job in stock and stock index futures when practicing.

Securities investment also needs to accumulate experience. Let's start with internship.