I have read your description for this Website carefully and really interested in taking up this project.I am a php | jQuery expert with rich experience. I have done many successful php | jQuery sites. I can follow your timezone and will be on time to answer you. I have quality-oriented programming habit, and very swift in delivery. I would be more specific once we communicate with each other. I hope you would let me do this job, and you will never regret doing so, but rather be excited with the outcome. I will be more than happy to get your response. Let's talk or chat about more details of your work. Thank you.
see my comments below
as i have developed web service for many app for android and iPhone where i have designed database and implemented store procedure as well.
i can also implement the latest database connection API "PDO" (developed my php team).
i can also develop web service for push notification as well fot both of the platform.