Employment reference letter advice own who to sign.

[BlackJeans]

Hie guys, I am employed in a large organization. I have been to several departments.
Hence I have a few questions.

Who should sign my reference letter, should it be my director or my supervisor/ ex-supervisor?
Should I have 1 letter for all my roles signed by HR/director or multiple letters signed by each supervisor/ex-supervisor?

 

[rajibsam]

Hie guys, I am employed in a large organization. I have been to several departments.
Hence I have a few questions.

Who should sign my reference letter, should it be my director or my supervisor/ ex-supervisor?
Should I have 1 letter for all my roles signed by HR/director or multiple letters signed by each supervisor/ex-supervisor?

One letter with all the role and responsibility with start date and end date. Signed by HR/Supervisor.

 

[BlackJeans]

Thanks a lot !!