Hello
I am sagar nayak . i just saw you proposal in your description and i think i am the perfect man to do this job for you. and i think i will make you believe this by my description below.
I have 3 years of exp in android development . my major field of work is android system programming. the coding part mainly. i have worked over api like paypal , google analytics, google maps, google direction and location , zxing and many more . recently i am working on ux team to make the user experience more juicy and dynamic. you can also checkout my stack overflow account for these info .
You have not mentioned about any specific details and requirement about your android app. all you have asked is to sign an nda. so i am up for it. we can further discuss about the app after you provide some details.
So i think i made my point here . please do reply so that we can discuss further about the project.
thank you