Separate transition for Multiple Boards in a project

[Amna Imtiaz]

I have one project with multiple boards. All boards are associated with same workflow which is shared by 18 projects. 

I want to set up a separate transition on each board. 

Eg: For Board A- I want to set up a post function that will assign all tickets with status "Code Review" to person Julia.

Eg: For Board B- I want to set up a post function that will assign all tickets with status "Code Review" to person John.

is this doable in Jira?

[Nic Brough -Adaptavist-]

Ok, there's a misunderstanding here:

You say "All boards are associated with same workflow".  

No, they are not.  Boards are a view of a selection of issues, not a container.  Projects are issue containers.  There is no workflow for a board, an issue follows a workflow, and which workflow it follows is configured by the issue's project and issue type.

So, you can't do what you describe, because the board has no say in what workflow the issues it is showing are following.

You can't even automate this by board - the issue doesn't care what board you are viewing it from.  You would need to come up with a different way to identify whether an issue is assigned to Julia or John, the board simply can't tell you.