Given my experience I am the best candidate for this offer.
I Worked at QA, so I'm used to think outside the box, reproduce bugs described by someone else and follow directions.
Adapted java applications for J2ME and Android for 4 years, which required a lot of quick bug fixing in code non written by me.
Worked for the past 2 years with In App Purchasing with different partners, which include Google, Amazon, Samsung, SKT, Vxinyou, ATET, Playphone and many more. In app purchasing is the best I can handle when working with Android, we could even adapt your current app so you can publish in different stores (project for the future).