Hi,
How are you? I am android system developer and not much into UX. I do work at all different layers of Android with deep understanding. Did many device customization, worked at evolving technologies.
Working at any service of Android should not be a problem.
If later your solution interact with other parts of Android, even at peripheral level, I would be able to assist you. Lets discuss if you are OK with it.
Thanks,
Abhishek