ARKit / RealityKit iOS Developer Needed for Immersive Mobile Prototype

We are seeking an experienced iOS developer with strong ARKit and RealityKit experience to help build an immersive mobile prototype. The project explores new ways of visualizing invisible environmental and spatial activity through augmented reality, atmospheric visual effects, and ambient soundscapes. This is not a traditional business application. We are looking for someone who enjoys building visually compelling, interactive experiences and can help transform a product vision into a polished prototype. The initial engagement will be a fixed-price prototype sprint focused on validating the core AR experience. Project Goals The primary objective is to create a working iPhone prototype that demonstrates: -- Immersive AR visualization using ARKit and RealityKit -- Dynamic environmental visual effects -- Smooth and polished interaction design -- Ambient soundscape integration -- Basic save and replay functionality -- A simple share experience -- TestFlight-ready deployment The prototype should feel cinematic, responsive, and visually engaging. Strongly Preferred -- Particle systems -- Real-time visual effects -- Motion design experience -- Audio integration -- Interactive visualization projects -- Spatial computing experience -- visionOS experience Deliverables Initial sprint deliverables include: -- Working ARKit/RealityKit prototype -- One immersive AR visualization scene -- Ambient soundscape integration -- Basic navigation structure -- Source code committed to Company GitHub repository -- TestFlight build for review Additional milestones may follow based on results. Working Style We are looking for a collaborative developer who is comfortable: -- working from a product vision -- contributing creative ideas -- iterating on visual experiences -- communicating progress regularly -- helping shape prototype interactions To Apply Please provide: 1. Links to ARKit or RealityKit projects you personally developed. 2. Links to any App Store or TestFlight projects you have shipped. 3. A brief description of the most immersive or visually compelling mobile experience you have built. 4. Your role on that project. 5. Why this project interests you. Please do not submit generic mobile application portfolios without AR examples. ** This project is part of an early-stage startup initiative with potential follow-on work beyond the initial prototype phase.**