Salaries around 150k for senior engineers aren't even that common in the states outside of the Bay Area and New York. Can you keep your current position but work remotely from the EU?
If anyone’s curious what the going rate is these days, visit levels.fyi and read some threads on Blind. Senior SWEs often land over 300K TC at the big companies.
To check, usually you can find examples on h1bdata.info