bug fix an Android application -urgent very tight sheduel

We have a basic Android-based social networking app. It looks and behaves very much like Instagram, allowing users to make Posts, comment on each other's posts, create and join groups, follow users, and other basic social features. The server backend for this is already completed (with documentation) and we have a prototype of the client done. The UI has already been defined, and the initial prototype including basic networking code has already been written. Also, a complete server backened system has already been written, along with API documentation. All communication with server is done via RESTful HTTP services. You should be familiar with HTTP requests on Android for this project. We are looking for someone who can do a pass on each of the features included below and make sure that the client is functioning to-spec. That is, you will be required to review the spec documents, the server api, and the client code, and make sure the client is doing each of the features correctly, and that all server calls are being properly made. This is largely a quality assurance pass. This is a SHORT-TERM PROJECT. You have less than 48 hours for this project. We're looking for someone who knows what they're doing and can work quickly. Required Skills: • Java • Android 4.4+ • JSON Object Handling (used for both HTTP requests and responses) • Strong UI skills • GitHub Required Tasks: • Write client code to support the Posts & Comments Server API. Must support Like/Un-Like, Dislike/Un-Dislike, Flagging, profile wall posts (e.g. writing a post on your own wall or someone else's wall), and Image-based Posts. • Write client code to support the Groups Server API. Must support group creation, discover groups (my groups,popular, near me), viewing group details, and posting on Group Page • Write client code to support the News Feed Server API. Must support image