I recently worked with someone who I really enjoyed working with, and who I also think is incredibly skilled. He no longer works with us as he was here on a limited contract which is not being renewed as the work he was hired to do has been finished.
I want to write something about how good he was to work with on his LinkedIn profile, as I genuinely think he was amazing to work with. I am just wondering what the etiquette is for leaving unsolicited recommendations on other people's profiles. Should I hold off from writing anything as he has not asked for a reference?
(Not sure if it's relevant, but we were at the same "level" work-wise, so I was not his manager or anything like that.)