[Remote] Mobile iOS Engineer

Note: The job is a remote job and is open to candidates in USA. xAI is dedicated to creating AI systems that enhance human understanding of the universe. They are seeking an exceptional iOS engineer to join a high-impact team focused on developing cutting-edge mobile experiences that redefine user interaction with AI.ResponsibilitiesDream up and craft delightful, intuitive user experiences that redefine how people interact with AI on mobileObsess over every pixel, animation, and interaction, ensuring the experience feels magical and seamlessBuild blazing-fast, highly performant systems where every millisecond countsDrive technical and product decisions, collaborating with AI researchers and engineers to deploy state-of-the-art models globallySkillsExpert in Swift, with deep knowledge of UIKit and SwiftUIProficient in performance optimization—memory, CPU, GPU—using low-level tools to deliver blazing-fast systemsExperienced in designing and shipping intuitive, pixel-perfect mobile UIs that redefine how users interact with AISkilled in concurrency and reactive programming (Combine) for responsive, real-time appsBuilt high-throughput integrations with APIs (REST, gRPC) or AI model outputs, ensuring seamless data flowCapable of owning complex features end-to-end, from architecture to App Store deployment, with a focus on speed and scalabilityDeep expertise in the Apple ecosystem and related development toolsRust for working with our backend componentsAVFoundation for real-time audio processingTrack record of shipping standout apps or standout features within appsDeep expertise in iOS development, particularly with Swift. We seek individuals who operate at the highest levels of their craftExcel 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 succeedA sharp product sense, with an ability to empathize with users, anticipate their needs, and translate that into features that delight and deliver valueBenefitsEquityComprehensive medical, vision, and dental coverageAccess to a 401(k) retirement planShort & long-term disability insuranceLife insuranceVarious other discounts and perksCompany OverviewXAI is an artificial intelligence startup that develops AI solutions and tools to enhance reasoning and search capabilities. It is a sub-organization of SpaceX. It was founded in 2023, and is headquartered in Palo Alto, California, USA, with a workforce of 1001-5000 employees. Its website is https://x.ai.Company H1B SponsorshipxAI has a track record of offering H1B sponsorships, with 1 in 2025. Please note that this does not guarantee sponsorship for this specific role.