Hi there! I have read what you exactly need, however I would like to ask you a few questions. I wouldn't call myself a master but I do work smart and do not rest until I get the job done. Please feel free to ping me anytime so we can have a detailed discussion.
Hello,
I've been writing Mac apps since 2009, occasionally publishing to the mac app store (there are examples in my portfolio).
We can initiate a chat about your project if you want (assuming this is about Mac, not iPhone).
All the best,
Bruno