SMS Forwarder for iOS & Android via react-native

I am looking for a proficient cross-platform developer who can work on an application for both iOS and Android. This app's main functionality would be to forward SMS/Text messages to other SMS, Telegram, and email addresses. Key Objectives: - App development competence in cross-platform development primarily focusing on iOS and Android smartphones. - The app should have the ability to forward incoming SMS/Text messages to other SMS numbers, Telegram, and email addresses. - An eye for detail to design a professional and corporate-looking app to resonate with our company's ethos. Ideal Expertise: - Expert in iOS and Android development - Experience with integrating third-party messaging and email services - Strong graphic design skills to create a professional and corporate aesthetic. Requirements: - app starts with system / smartphone start and runs in background - app listens to the incoming messages - on incoming message the forwarding is done by a configurable delay in milliseconds milestones: MS1: implement a basic hardcoded forwarder which detects new SMS (event) and forwards them via e-mail to a hardcoded e-mail address (android and ios) MS2: design & implement a UI, which has a settings dialog for the rules: - add/delete/update/display (CRUD) operations on rules - user can choose a regex pattern to detect specific phone numbers (from) - user can choose the destination(s) (a list of destinations) with whatsapp, telegram, sms, e-mail - implementation in this MS on the UI only for e-mail (but user can select all the named options) - user can choose to use macros like: - sender phone (smsSenderPhonenumber) - sender name (smsSenderDisplayName) - senders text (smsBody) - senders datetime (smsDatetime) MS3: help to publish on playstore and appstore MS4: implement the telegram integration (forwarding destination) MS5: implement the telegram integration (receiving telegram msgs and forward) MS6: implement sms sending (e.g. to forward) MSx: (out of your current bid) implement whatsapp integration and others too Budget? will not be disclosed, place your best bid to get considered What is next? We will share you a NDA and afterwards a paid test task. Payment? - you estimate in a WBS (optimistic, expected, pessimistic, where optimistic < expected < pessimistic) after getting the task - we discuss about clearances and effort - we mutually agree to effort - we agree to delivery dates - we assign you the task after mutually agreed - you implement, test and deliver - you provide also unit /integration tests to ensure code is always working - you document each required step to make interaction of systems to work - we test on our premise (you maybe help to fix issues) - we pay (basically the rules of freelancer) Closed book vs open book? We work only on open book. Closed book means you are unwilling to define a WBS for the work and you add only a price tag to the task. We are sorry we will not hire you in such a case! Deliveries? - in our on premise git (access will be granted to you) - full sources - typescript - full working build (for CI and local build) - libs, need prior confirm and we prefer to use mostly latest stable versions - JDK 17 (mostly LTS) - your code is working on our end too - your code passes our CI build (with provided maven [login to view URL] can be checked) - you may require to help us here on setup - docker compose to startup all required runtimes - we require, depending on availability and on complexity 2-4 weeks test time per milestone. Usually clearly less