Are UI designers generally recruited by small and medium-sized enterprises or large enterprises?

Large companies have fine points, but have high professional standards. User analysis only involves analysis, vision only involves vision, there are dedicated personnel for interaction, etc.

The general configuration of small and medium-sized enterprises is: product + vision + front end. The user experience is assigned to the product, and the interaction is assigned to the visual or front-end, something like this.

Another very important point is that large companies have many resources and a lot of pressure, but they can be promoted quickly and receive good treatment.

The project cycle is generally longer! It is difficult for primary and secondary school students to produce excellent works because they are usually rushing to work and making endless revisions