What network does a builder use to find a job?

Look for it on the recruitment website. Now several mainstream, 5 1job, Zhaopin, cjol, Hunting. There are also some smaller recruitment websites such as Lagou. These recruitment websites are all formal enterprises. You can filter by region, salary and publishing time.

Don't go to some 58 cities, look online. The main business of these websites is not recruitment. Some formal enterprises will not go here to recruit people.