Multi-Platform AR Scavenger Hunt Platform

We are building a scalable, content-driven augmented reality scavenger hunt platform — a system where creators build and publish location-aware AR games for players to experience in the real world through their mobile device camera. The platform moves from a WebAR Phase (Phase 1) for rapid accessibility to a Native App Phase (Phase 2) leveraging Unity for full offline, high-fidelity AR experiences. We are seeking an expert developer or team comfortable with modern AI-assisted workflows who can architect and build this platform from Phase 1 through full delivery. Core Technical Stack Native AR: Unity LTS + AR Foundation (ARKit/ARCore) + Vuforia for image recognition and spatial anchoring WebAR: MindAR.js + Three.js (with a planned upgrade path to 8th Wall) Application Shell: React Native + Expo Backend & Data: Node.js, NestJS, Prisma, and PostgreSQL (Supabase) Location Services: Mapbox SDK (GPS navigation and offline map tiles) Asset Management: Unity Addressables for offline content delivery AI Content Generation: Vercel AI SDK (Claude API or equivalent) for CMS content suggestions Key Responsibilities Architect a shared-engine system where game content is fully data-driven — new games require zero code changes Build a self-serve CMS game builder that non-technical creators use to publish complete AR games Implement image-recognition spatial anchors that trigger AR content relative to real-world objects Integrate AI content generation via Vercel AI SDK throughout the CMS suggest system Manage the full mobile release lifecycle including CI/CD for iOS and Android Professional Expectations Proven experience shipping AR applications that interact with physical-world image markers or locations Comfortable bridging WebAR and Unity native environments within a shared architecture Demonstrated mastery of RESTful API design, mobile build pipelines, and AI-assisted development We are open to stack alternatives provided there is strong technical justification In your proposal, please include a link to a portfolio piece or code sample demonstrating an AR project you have built that interacts with physical-world locations or image markers.