Cross-Platform Mobile App and web design Developer Needed for Automotive MVP

We are seeking an experienced, highly skilled mobile app and web developer to build a Minimum Viable Product (MVP) for a crowdsourced automotive consumer-protection platform. The app will utilize 17-digit VIN scanning and manual entry to surface real-time vehicle inspection data and crowd-logged defects. This project is a fixed-price contract with clear milestones. We have a fully detailed Product Requirements Document (PRD), visual layout wireframes, and database JSON schemas ready to share. To protect our intellectual property, all shortlisted candidates must sign a Mutual Non-Disclosure Agreement (NDA) and Intellectual Property Assignment before the full design specifications are released. Core MVP Features to Build: * Screen 1 (Search Dashboard): Minimalist input screen supporting manual 17-digit alphanumeric entry and an integrated native camera module for barcode/VIN scanning. * API Integration: Connect the input field to the free government NHTSA vPIC API to asynchronously parse JSON payloads and automatically return vehicle metadata (Year, Make, Model, Trim, Engine). * Screen 2 (Vehicle Report Profile): A real-time data rendering screen pulling community-logged defect cards and algorithmic alert badges from a secure cloud database. * Database Infrastructure: Set up a real-time document-store hosting environment (Firebase or Supabase) to manage VIN-indexed reporting. * Screen 3 (Log a Defect Form): A localized multi-select button grid and 1,000-character rich text input form integrated with the Google Places Auto-complete API for dealership locations. * Monetization Stubs: Build UI placeholders for localized banner advertisements, credit union referral links, and a payment processing gateway stub for premium content unlocks. Developer Requirements: * Proven track record of building and launching cross-platform apps using Flutter or React Native (must provide direct portfolio links to live apps in the Apple App Store or Google Play Store). * Deep experience integrating REST APIs and parsing complex JSON strings asynchronously. * Expertise setting up and optimization relational or document-based cloud databases (Firebase/Supabase). * Absolute requirement to push written code updates to a GitHub repository owned and managed by the client at the completion of every milestone prior to fund release. * Fluent, transparent English communication with fast response times. If you are a disciplined developer who builds clean, maintainable code and can complete this MVP within a 4-to-6-week timeline, please apply. Please include the word "VINEngine" at the very top of your proposal so we know you read this full description. We look forward to reviewing your portfolio!