I want to make a recruitment website like 5 1job, 58 city. What open source products can I use?

Ecshop is a shopping mall 5 1JOB, a recruitment website 58 and a classified information website. It may be difficult to satisfy two different websites with open source products. If you must use open source products, you must also carry out secondary development. There are recruitment channels and classified information channels in PHPCMS and DEDECMS. If you are good at PHP, you can use these two CMS to modify it.