Mobile App Development (Apple & Android) in React Native

Introduction Asperion is a leading software supplier who creates online software for enterprises. The online software portfolio includes CRM, Bookkeeping, Invoicing and supply chain applications. The headquarters based in The Netherlands near the capital city of Amsterdam. There is also a mobile app which has a focus on easy tasks for clients of the software whilst ‘on the road’. This project is to replace the current mobile app with a completely new one supplying more functionality to our clients. The Mobile App (requirements) (The complete list of requirements, functions, designs, API documentation etc, etc.. will be provided after the first selection of capable contractors. This is a brief summary) Requirements: - Mobile App framework for both Apple and Android devices . (Phones and Tablets) - React-Native - An app scheme for deep linking - Login using oAuth 2.0 PKCE-flow (Existing API Identity Server Asperion) Tokens must be stored in Keystore (Android) or Keychain (Apple) - Data communications using existing REST API. - App design will be made in Figma and provided by us. (Implementation of design needs to be ‘pixel-perfect’) - Contractor is not allowed to use any pre-existing IP and third-party software, unless it is open source and approved upfront by Asperion. Functions: - Mobile Scanner (Includes Edge detection / Keystone Correction / Cropping & image optimization / Multipage scan / Save to PDF and upload to API endpoint) (Example : [login to view URL]) - List and view of Debtors / Creditors / Invoices / documents (read-only) - Download and preview PDF documents (invoices) - Graphical Overview using charts of financial results from bookkeeping - Receive push notifications (based on SignalR service) - Approval of invoices (to be paid) - Create / Update / Insert Sales Invoices - Create / Update / Insert Relations (Debtors and Creditors) - Approve purchase invoice booking proposal (from our OCR engine, also API based) - Register (CRUD) hours working and traveled distance - Viewing and matching bank statements .. and more functions and features to come.. We are looking for a long term partner to build and maintain this new app. A partner that thinks along with us and advises us in order to arrive at the best solution. As we expand the functionality of our online application and API endpoints, we need a partner who can extend the mobile app with functions associated with these new features. We build the new app in predefined phases and build more functions and options on an ongoing basis. We intend to release new versions in short sprints. You will be working closely with our back-office development teams, who are making the API endpoints and will be assisting in the process. If you are interested in the project and looking for a long term assignment, please leave u an message supplying us with your portfolio. After the first selection we will provide some more details, API documentation, designs and the planning of the development phases and ask for quotations to make a final selection. Contractor agrees that the Freelancer.com Optional Service Terms will apply to this assignment. Payment will be done via Freelancer.com Escrow. The payment will be released after completion of each phase of the project.