Considering the resources that countries invest in training people at doctorate level we can easily claim that PhDs are among the most invested 'brains' in each country. Yet what is missing from the discussion is what happens with their career after they gain their PhD. Based on two studies we reveal the job-related movements (career) of PhDs from Estonia. The results signpost a great share of heterogeneity across research fields-a diversity that has considerable effect on how universities can manage their academic workforce and their career, but also, factors that shape movements between the academic and non-academic labour market.