Android Security Expert - Backdoors - I need Enterprise Grade Protection. -- 2

I have serious problems with my phone, I've been hacked extensively. I work in a sensitive industry and some have discovered my ip address. They watch me use my phone and even delete text messages I also believe they can listen and have access to my camera It's a very serious problem It will take great experience to solve. It requires advanced android experience and an understanding of backdoor entry into an android device. This is not an issue with apps, it's far more sophisticated.