To add/remove jobs on tbpl.mozilla.org, we have to modify buildbot-configs.
Making changes can be learnt by looking at previous patches, however, there's a bit of an art to it to get it right.
I just landed a script that sets up buildbot for you inside of a virtualenv and you can pass a buildbot-config patch and determine which builders get added/removed.
You can run this by checking out braindump and running something like this: buildbot-related/list_builder_differences.sh -j path_to_patch.diff
NOTE: This script does not check that the job has all the right parameters once live (e.g. you forgot to specify the mozharness config for it).