I checked your project details carefully, Dear hiring manager. As a senior android/ios development, I am very interested in your task. I am good at B2B & B2C android/ios with node.js Server developement which I have been already tried. I want to clean and correct all problems. I have lots of experience like that before. As a android/ios developer who's focusing on E-commerce, even if your ideas are too large or too complex, I can guarantee the success with my skill. I am ready to start immediately for you. Thanks for your posting job.