2013: 34k (junior Frontend)
2014: 40k (Fullstack JS)
2015: 50k (Frontend)
2016: 60k (Frontend)
Went freelancing after this...
2020: 85k offer for Senior Software Engineer
All numbers are from StartUps. You have to know however that you probably won't find a unicorn in Europe just yet. It's not the same mentality as in the US.
I currently work for a US company with a European location, and it differs quite a lot.
30+ days holidays + country wide holidays 38h work week Free day care where I live
I checked and I would have to earn around 140k in New York or 280k in San Francisco to have the "same" quality of life as 85k in Berlin buys me. However, in Berlin I have additional benefits like the ones mentioned above. I pay around 1100 Euros for a 110qm apartment "downtown" and have no car.