Let's have a chat before you award this project to anyone else.
I would like to hear about your fps project in detail so that I can understand your requirements.
I am an experienced android developer and have been into Android development for the past 3 years. During this period I have developed over 8 apps and published 5 of them on the play store. Along with that, I have delivered all of my freelancer projects successfully. I have worked on Machine Learning, Rest APIs, game development, databases, firebase, etc under app development and have gained necessary skills.