4da59895-033 Mobile iOS Engineer We're seeking an exceptional iOS engineer to join a small, high-impact team dedicated to creating the world's most valuable AI application. As a Mobile iOS Engineer, you'll shape cutting-edge mobile experiences, blending technical mastery with product brilliance. You'll dream up and craft delightful, intuitive user experiences that redefine how people interact with AI on mobile. You'll obsess over every pixel, animation, and interaction, ensuring the experience feels magical and seamless. You'll build blazing-fast, highly performant systems where every millisecond counts. You'll drive technical and product decisions, collaborating with AI researchers and engineers to deploy state-of-the-art models globally.

As an expert in Swift, with deep knowledge of SwiftUI and UIKit, you'll design and ship intuitive, pixel-perfect mobile UIs that redefine how users interact with AI. You'll be proficient in performance optimization,memory, CPU, GPU,using low-level tools to deliver blazing-fast systems. You'll be skilled in concurrency and reactive programming (Combine) for responsive, real-time apps. You'll built high-throughput integrations with APIs (REST, gRPC) or AI model outputs, ensuring seamless data flow. You'll be capable of owning complex features end-to-end, from architecture to App Store deployment, with a focus on speed and scalability.

As a member of our team, you'll be expected to have strong communication skills, be able to concisely and accurately share knowledge with your teammates, and work collaboratively with AI researchers and engineers to deploy state-of-the-art models globally.

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]]> full-time senior onsite $180,000 - $440,000 USD Swift, SwiftUI, UIKit, performance optimization, concurrency, reactive programming, Rust, AVFoundation, track record of shipping standout apps or standout features within apps Engineering Technology xAI https://logos.yubhub.co/xai.com.png xAI creates AI systems to understand the universe and aid humanity in its pursuit of knowledge. https://www.xai.com/ https://job-boards.greenhouse.io/xai/jobs/5057013007?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply London, UK 2026-04-18