Can i somehow get list of all or delayed jobs? Need to make kind of moderation, watch, delete them, etc...
Based off https://docs.phalconphp.com/en/latest/api/Phalcon_Queue_Beanstalk.html you might find 'statsTube' to be of use.
Otherwise you would either have to
A. Seek Beanstalkd usage via a different PHP Library, or
B. Directly interface with the Beanstalkd socket if the functionality exists.