I'm organizing my board using stories and subtasks within those stories. This way is very helpfull to have an organized view of what is still pending for a story to be completed or done within Active sprint view. But it will be great to have something similar within backlog view so it could be easier to know which members of the team have subtasks assigned for that story in a single sight.
It looks like the default scrum backlog doesn't know subtasks, but the kanban backlog does. Which project type are you using?
You might be able to force the backlog view to show tasks by editing the filter query. (https://confluence.atlassian.com/jirasoftwarecloud/configuring-filters-764477988.html)
In the past, my team has used something like this
project = projectKey and issuetype in (Story, Bug, Task, Sub-task)
Introducing Jira Cloud for Excel Here at the product integrations team at Atlassian, we are thrilled to announce the new Jira Cloud for Excel add-in! This add-in lets you export Jira data directly ...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events