what seems to be the way to go is people ladder hopping every 2 years to make it to a managerial level, because when you not a manager you are nothing in Germany salary wise. the tech worker career track simply does not exist.
Higher salaries are eroded by high cost of living and higher taxes
If you are married, it depends on what your partner earns.
If you are not married, after tax and social contributions (health insurance, unemployment insurance, state retirement fund and some other insurance) roughly 30k. Your kid is health insured for free. And you will get some money from the state each month for the kid.
Also at least 20 days of PTO, parental leave and a lot of potential sick leave (20d/y if you have a kid) for that purpose alone.
IT sector seems to have an average of 75k in the former West, 58k in the former east.
From my experience, ~42k was an entry level job with a bachelor degree in the east.
In Germany if you marry you get the option to either both stay Steuerklasse 1/4 or you get to downgrade one which has to pay a little less taxes while the other one stays higher taxed.
Patriarchially that's why married women always earn less in their Steuerklasse 5 (even if they would be paid the same) because they pay the more taxes, so that the husbands in Steuerklasse 3 pay less taxes.
Not making this up, in case you want to smash that slur button.
Oh, and it also is only useful when one party (statistically the husband) makes 60% or more of the combined income because all untaxed Freibeträge are always accounted to the one with the better income in a Gemeinsamer Güterstand.
I built it to answer this question