App Developer

I am looking for an experienced app developer to help create an app that works across platforms and fulfills specific requirements. The app must be developed for both Android and iOS platforms. I'm very specific about what I need and have a detailed idea in mind. If you have the skills to develop an app with the features I'm looking for, then I look forward to your response.
I want to do work with him in my own office which is situated in Lucknow.