我知道产品经理是product manager,那四级又怎么表述呢，领导出过要名片呢
谢谢

thanks for the help,in the same time,i got the common translation from our reletive department.it should be "senior product manager".
thanks again.

我个人没有银行相关背景知识，只是某种直觉，可以翻译成“ product manager （grade-IV）”吗？

咳，只供参考~~

咳咳  原来这个还分级的    学习了

i think the level of bank manager does not need to interpret when introducing others.
while in written language, in my opinion, it may be product manager (forth level )

I think you can use "senior student" as a reference.

So "senior product manager"  would be  ok Of course this also depends on how many grades there is.    Good luck!