The subreddit FAQ has a specific section about history as a vocation. There are also interviews with various flairs on the AskHistorians Tumblr page, where the interviewees talk about their offline scholarship a bit. /u/tenminutehistory spoke in a podcast episode about life as a(n) historian and during another one about historiography and historical epistemology.

/u/mikedash has also answered What is a historian?