An intermediary said it was more reliable to introduce Unacon to me.

Personally, I think it is not reliable to find an intermediary. Go to Shi Yao's website and read the recruitment information for yourself, but the requirements are relatively high. There are jobs every year, of course, the grassroots are workers. But if the conditions are good, you may have to work at the grassroots level, or call it rotation, and the time is shorter. If you are not strong, you will have to work at the grassroots level for a longer time until you leave Shi Yao at the longest.