Ionic App needs to display and filter data from our loopback.io backend on the LEDGER model -- 2

Need help to go through existing app with our double accounting LEDGER model which tracks virtual coins, payments, prize redemptions and prize quantity. You will need to improve the existing screens and make sure the information from the LEDGER model is retrieved and filtered for the above (coins, payments and prize redemption). You must have UI and frontend design experience, with an eye for details. SCOPE Develop, design UI and test using hybrid mobile application (Android and iOS on Ionic framework). Fix the UI screens (coins, payments, and prizes ) and bind the client app to the backend API so that the screens return the correct information . You will be required to fix some some of the backend API services (if required); you are also required to complete and wire up the calls the backend APIs and work with the API developers for functionality requests (Loopback JS framework); FUNCTIONALITY 1. Need to query, sort and filter the backend LEDGER model (backend API available) 2. Make sure the screens (my coins, my prizes, my prize redemptions, and coin payments) correctly display the information from the LEDGER model 3. Make sure appropriate authorisations are enforced 4. Mostly UI and ionic app work. 5. With some nodejs/mongodb modifications (if any) 5. Ionic framework app + [login to view URL] backend 6. Testing and Documentation for Delivery FURTHER BACKGROUND -The full requirement and specification document will be discussed with the successful bidder. -For the right developer this will turn into a stable long term partnership with further modular work -IP and copyrights will be unconditionally assigned to us -Sub contractors need not apply. PAYMENT: -Milestone payments will be created on progress. -Contract must be signed in order for project to be regarded as completed. -Release of payments only on completion of project, not for achieving milestones (this includes post deployment period in which we will need to ensure your developed functionality is free from defect and functions as required) -Full payment will be released to you within 5 business days after the project is satisfied, approved and contract signed. Mention in your reply: "IONIC+NODEJS+API" so we know you've read the project brief. PS: Preference if you could also read Chinese