A. Use the trigger-remote-build CLI command and pass the Job URL as a parameter.

B. Broadcast an e-mail message from the Job on Master A and monitor the e-mail queue from Master B.

C. Use the cross team collaboration feature to publish a build notification and subscribe to that notice from Jobs that should run when the notification is published.

D. Use the Pipeline build step with the remote path URL argument.

E. Use the "Trigger parameterized build on other projects" post-build step and specify the remote path as project name.