Mobile iOS Engineer

Join xAI, a mission-driven company focused on creating AI systems that enhance humanity's pursuit of knowledge. As a Mobile iOS Engineer, you will be part of a small, high-impact team dedicated to developing the world's most valuable AI application. You will design and build intuitive user experiences, optimize performance, and collaborate with AI researchers and engineers. Enjoy comprehensive health benefits, flexible vacation, visa sponsorship, and a 401(k) plan.

• Concevoir et créer des expériences utilisateur intuitives et attrayantes qui redéfinissent la manière dont les utilisateurs interagissent avec l'IA sur mobile.
• Construire des systèmes hautement performants où chaque milliseconde compte, en optimisant les performances.
• Prendre des décisions techniques et produit, en collaborant avec des chercheurs et des ingénieurs en IA pour déployer des modèles de pointe à l'échelle mondiale.
• This organization is for individuals who appreciate challenging themselves and thrive on curiosity
• Work ethic and strong prioritization skills are important
• All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates
• Skilled in concurrency and reactive programming (Combine) for responsive, real-time apps
• Experienced in designing and shipping intuitive, pixel-perfect mobile UIs that redefine how users interact with AI
• Capable of owning complex features end-to-end, from architecture to App Store deployment, with a focus on speed and scalability
• Expert in Swift, with deep knowledge of SwiftUI and UIKit
• Proficient in performance optimization—memory, CPU, GPU—using low-level tools to deliver blazing-fast systems
• Built high-throughput integrations with APIs (REST, gRPC) or AI model outputs, ensuring seamless data flow
• Deep expertise in the Apple ecosystem and related development tools
• AVFoundation for real-time audio processing
• Track record of shipping standout apps or standout features within apps
• Rust for working with our backend components
• Deep expertise in iOS development, particularly with Swift. We seek individuals who operate at the highest levels of their craft
• Excel at delivering results swiftly, often in a fraction of the time others require. Speed is a core value at xAI—we must act decisively to succeed
• A sharp product sense, with an ability to empathize with users, anticipate their needs, and translate that into features that delight and deliver value