As per my need the person should have knowledge about the php script and xml parsing or response handling, also if he know database handling that will be good.
The person and i will work together on the project. Its more likely a joint work. Its basically like Android as front end and php + mysql as back end.
So if i upload a file to my server through android the same file should b saved over the server and a response should b reverted back to me of successively updated. Also when the file is uploaded it should register its availability to other users too.
Work is not complex expect one thing that it involves images and videos.