Quick filter items on Sub-task bards such as the one below by Team Support at their parent Story

[ashok 1234]

Really I just need an example Quick-filter or Issues query snippet to filter the items on Sub-task bards such as the one below by Team Support at their parent Story item level. So that we can have either a Sub-task board with a filter for each team, or be able to construct proper query for separate boards.

[Ignacio Pulgar]

For getting subtasks which parents match a specific condition you'll need the help of a third party addon like ScriptRunner, which provides advanced JQL functions like the one you need here:

issueFunction in subtasksOf("'Team Support' = QA")

Hope it helps.