Senior iOS Engineer (Swift / ARKit / AI Consumer App)

We are looking for a senior U.S.-based iOS engineer to help take an existing AI-powered consumer app to the next level. The app is already built and currently in active TestFlight testing. We are now focused on implementing expert-level iOS features, improving the overall user experience, increasing retention, and optimizing conversion from free users to paying subscribers. We're not simply looking for someone who can write code. We're looking for someone who understands consumer products, user psychology, subscription businesses, onboarding flows, engagement loops, and what makes users come back and ultimately become paying customers. The ideal candidate can look at a feature and think beyond implementation. We want someone who can identify opportunities to improve activation, retention, monetization, and overall product quality while building a world-class iOS experience. Responsibilities: • Build and ship expert-level iOS features • Improve onboarding and user activation • Increase retention and engagement • Optimize subscription conversion and monetization • Improve UI/UX throughout the app • Fix bugs and improve performance • Collaborate on product strategy and feature planning • Assist with TestFlight and App Store releases