Aidy Boothroyd is stepping down as England U21 manager two weeks after his side's European Championship exit at the group stage.
The 50-year-old had described the role as "the utterly impossible job" during the tournament, but added he was still the right person for it.
Boothroyd, whose contract expires in the summer, moves on after seven years with the Football Association.
"We didn't finish in the way we wanted," said Boothroyd in a statement.
"It's been the greatest privilege to represent the FA and lead England teams into high-profile tournaments.
"I'm very proud to have been able to work so closely with players who I know will go on to have remarkable international careers and to have experienced some very special moments with them over the years."