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Job description
About xAI
xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands‑on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. 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.
About the Role
We’re seeking an exceptional iOS engineer to join a small, high-impact team dedicated to creating the world’s most valuable AI application, judged by the impact it delivers to users. You’ll shape cutting‑edge mobile experiences, blending technical mastery with product brilliance. An ideal candidate meets at least the following requirements:
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.
Experienced in designing and shipping intuitive, pixel‑perfect mobile UIs that redefine how users interact with AI.
Skilled in concurrency and reactive programming (Combine) for responsive, real‑time apps.
Built high‑throughput integrations with APIs (REST, gRPC) or AI model outputs, ensuring seamless data flow.
Capable of owning complex features end‑to‑end, from architecture to App Store deployment, with a focus on speed and scalability.
Additionally, experience in any of the following may set you apart:
Deep expertise in the Apple ecosystem and related development tools.
Rust for working with our backend components.
AVFoundation for real‑time audio processing.
Track record of shipping standout apps or standout features within apps.
What You’ll Do
Dream up and craft delightful, intuitive user experiences that redefine how people interact with AI on mobile.
Obsess over every pixel, animation, and interaction, ensuring the experience feels magical and seamless.
Build blazing‑fast, highly performant systems where every millisecond counts.
Drive technical and product decisions, collaborating with AI researchers and engineers to deploy state‑of‑the‑art models globally.
Who You Are
Technically Exceptional : You possess deep expertise in iOS development, particularly with Swift. We seek individuals who operate at the highest levels of their craft.
Efficient : You 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.
Hardworking :
High Agency : You don’t wait for direction—you take initiative and make things happen.
Product-Minded : You have a sharp product sense, with an ability to empathize with users, anticipate their needs, and translate that into features that delight and deliver value.
Location
You can work out of xAI’s Palo Alto or San Francisco office.
Annual Salary Range
$180,000 - $440,000 USD
Benefits
Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.
xAI is an equal opportunity employer.
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Worksite address
palo alto, CA, 94306, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.