Hi! I've seen your requirements, I m interested in it, I have highest reviews for jQuery (frontend) at freelancer.com and have good completion rate, and experts in PHP(Laravel ,Yii ,Symfony, cakephp ,CI, Zend) for Server side, expert in integrating (SOAP and RESTFul API) 3rd Party APIs .
I'll make it Java (for restful service) HTML and JS, I'll use bootstrap, do you only want login and submit a picture and description, let me know more about it. I'll use mysql as db