I need a job, that with fixed intervals (e.g. daily) can make a export of my MYSQL-databases and save the export at the host. My databases are running on different hosting-centers, so You can't be sure that the hosting-center provide some specific job-management facilities.
Freelancers, that have done this kind of jobs before will be preferred.
It is required, that the bid contains a short description of, how you expect to solve the job.
Create cronjobs on your remote mysql hosts to do daily dumps, compress them and remove old dumps as to not have something which is constantly growing.
Then on your "backup" host have an cronjob which automates fetching these dumps daily (via ssh/rsync).
Standard sysadmin task.