I know that von Braun played an important role in the US space program. Given the scope of the space program, and the concentration of Jews in the sciences, did von Braun ever work with any Jewish scientists in NASA?
Yes, certainly. Abe Silverstein was an instrumental part of NASA from Mercury through Apollo and beyond. George Low worked at NACA and then NASA through the same time period and became NASA Deputy Administrator in 1969 (through 1976). Those are prominent figures that von Braun would have worked with regularly, he would have also worked with many lower ranked engineers, scientists, managers, etc.