Hire a Mobile Developer

I am looking for a freelancer to help me with my project. The skill required is ionic 2, angular, mobile application development. I am happy to pay a fixed priced and my budget is $100 - $150 USD. Mobile application requirements “Ready” product, whole source code Platforms: Android, iOS Implementation: Ionic 2 General description User can be logged in by username and password, can be registered or log in as a guest. Menu is displayed at whole screen. Menu can always be minimized to the left/up (lanscape/portrait) and can be returned back. Menu tree has an additional items, which are opened through app internal browser (method # 2). Application before rendering changes any URL by adding GET-parameter SID=<session key>. Algorithm App execution While execution application checks contract version (method # 1.1), whether it is needed it dosplays message about required update. When there is no internet connection there is warning about that.. If user logged in earlier and selected “remember me”, application checks session key (method # 1.4). In opposite case there is auth dialog by login/password (method # 1.3) with mode “remember me”. Main menu has links “registration”, “forget password”, “as a guest” (warning, that portal is available in restricted mode without registration), “Help”, additional links (method # 1.2). Main actions After successful authentication, menu is completed by information about registered user (or label Guest), button Exit, Help, Additional links (method 1.2). Login saves in local app storage, password saves when user checks “remember me”. Session key saves always. Internal application properties app version; supported contract version; app key (constant). Stored application properties login; password (when user checks “remember me”); session key. External contract to be connected Data access is implemented by http/https client. Parameters are send through HTTP GET. Received data format is json and html. JSON 1.1. App version info Input parameters: app key; app version; Output data: correct app version; contract version. 1.2. Receiving menu tree node Input parameters: app key; session key (if available) parent node identifier Output data: Node list (identifier, title, URL, icon) 1.3. Authentication Input parameters: app key; username; password. Output data: auth result error test (if exists) session key (if available); user type. 1.4. Session key check Input parameters: app key; session key. Output data: auth result (actual / expired / incorrect) user type. 2. HTML Input parameters: URL session key. Output data: HTML, to be rendered in application