回复：研发工程师 vs 项目经理

做项目经理最难的是处理与人的关系。上级下级都不容易。即使你一直这方面都不错，你也要意识到，你做经理后跟人的厉害关系不一样了。另外以前你需要摆平的是工程师，相对容易。作项目经理后跟你捣乱的人的水平明显见长, there will be difficult politics。会有很多headach.  That said, if it is something you like to do, and feel rewarding, or you can't stand being engineer anymore, then go for it, like what Sigma said.
But, first thing comes first - first baby should be before you turn 35.