As you have indicated you do not have the right to work in the UK, you are unable to apply for this vacancy.
You will need to prove your right to work in the UK to your employer before you start working for them. Do you have a right to work? More information can be found on the following link on how you can prove your right to work : https://www.gov.uk/prove-right-to-work
You may also find the following websites helpful in your search for a job:
