This may not exactly be the answer you are looking for, but Red Hat (my employer) has 4wd employees, even in my current team. Depending on the team, you may be

This may not exactly be the answer you are looking for, but Red Hat (my employer) has 4wd employees, even in my current team. Depending on the team, you may be able to negotiate a 4 day workweek without problems. However, you'd have to reside in a country where RH has an office. I have been at previous companies too where negotiating a shorter workweek was not a problem.