Hello sir I need some information about Spain work...

I would like to inform you that if you want to get a work permit, then you have to ask the help from relatives or friends there to look for a job for you and send you the contract. Or you can go there on a visit visa and look for a job and get a contract the return and apply for a work visa.
To get a visit visa, you have to review the embassy where you reside and apply for a visa and attach the work contract from abroad and cancel the previous visa and get the non-objection NOC of the sponsor.
Note that if you want to get a visa to the country you want, then you have to review the embassy of the country you want to go and apply for a work visa and attach the work contract and the following documents:
1. A copy of your valid passport for at least six months.
2. Personal photos as passport photos.
3. A bank statement to guarantee the expenses of residence duration there.
4. Hotel Reservations “ ticket”
5. Air tickets “ round trip “
6. Health Insurance.
7. A certificate of Good Conduct.
8. Provide you valid residence for at least 3 months.
9. Provide the employer NOC.
10. Pay the fees which are almost 85$ and the employer shall pay it.
Then wait for the reply whether you are accepted or not.