I am a programmer with 4 years experiences working with C++/C#, Unity Engine and Unreal
engine.
I can work with unity, but i would prefer using Unreal Engine, which is a similar engine to Unity, can be deploy to both Android and iOS.
According to your project description, there have been an existing game made on flash, can you send me a link to that game or a copy or at least that game name? I also want to know that would you provide the assets(sprite, image, logo,...)? If you can not provide those asset, i will use in-engine 3d model or free assets, which is free to use and you can replace those later if you have better models.
Please tell me more about your ideas for the game, such as the goal, summary,... the more ideas the better.
I think we should first focus on android, as it would be more easy to deploy it to app store.
My personal policy is that i will send you my work in progress every 7 day so that you can give me any feedback and those feedback will be include into the next version. We can change the 5 day or 4 day, it is open for discuss.
Bug/ feedback and support will be handle as quick as possible, free of charge for 2 weeks after the then end of the contract. Source project would also be transfer to you at the end of contract.