Hi there
So, if I am right, you want a job search engine? One place to search for all other jobs places.
What I can do, is to create a crawler on those job places, and collect the data daily and update the database. So when the person searches, it will find those collected jobs.
Correct me if I am wrong.
Anyways, feel free to hit me up so we can talk more about this. I am very responsive. All the best