Says somebody apparently... living in Berlin?
Calling Berlin "marginally" cheaper than the Valley is something I'd be highly sceptical of. Rents aside I've not been to many other places where food, shopping and leisure has been as cheap.
Also, OP did not mention he wants to optimise his income?
Calling Berlin "marginally" cheaper than the
Valley is something I'd be highly sceptical of.
Presumably sneak means "Costs of living are lower, but if you salary goes from $150,000 to €50,000 it's not clear you'll be left with higher discretionary income."
Your salary will just not decrease so disproportionately in relative terms. € 50,000 was a starting salary I was offered for a business position straight out of university. Any software engineer, much more so people with experience will earn considerably more. As other's have pointed out, senior positions rather range from 70k - 90k depending on the position and experience.
Also, OP did not mention he wants to optimise his income?