Pretty sure in big tech hubs like London, Amsterdam, Dublin, senior engineers make at least this much. Probably more. I can only offer my experience from London, not sure about other places but for sure there you can make over 100k as senior engineer.
Oh. But then we're not talking about equivalent levels of senior. Senior in the US can be reached in 2 years.
$80k is just under €70k, which is very possible for senior engineers in Berlin.
Idk I'm in NL and senior managers make this easily.