In your current situation, there are several options:
1, choose to do automotive, engineering vehicles aspects of the unit. If you have the strength, even if you do not do the project manager can be a general engineer or higher.
2, choose to do automation non-standard equipment unit. Starting from the assistant engineer, not out of a year can learn a lot of knowledge, including experience. (This kind of unit will help you a lot to be a project manager later)
3, you are now learning structural design and simulation analysis. You can also consider to develop in this area. Let's say you find a company that makes antennas, or a medical device unit. At least now this specialty has a higher treatment.
In short, as long as you like that one have a good future. The first thing you need to do is to get your hands on a new one, and you'll be able to do that. I'm just summarizing from myself.