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July 17, 2026
Mobile iOS Engineer
Senior • On-site
Palo Alto, CA
SpaceXAI'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, prioritization, and strong communication skills are important. Team members should be able to concisely and accurately share knowledge with 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.
Responsibilities
- 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.
Basic Qualifications
- Expert in Swift, with deep knowledge of UIKit and SwiftUI.
- Proficient in performance optimization using memory, CPU, and GPU tools.
- Experienced in designing and shipping intuitive, pixel-perfect mobile UIs.
- Skilled in concurrency and reactive programming with Combine.
- Built high-throughput integrations with APIs such as REST and gRPC.
- Capable of owning complex features end-to-end, from architecture to App Store deployment.
Preferred Skills and Experience
- Deep expertise in the Apple ecosystem and related development tools.
- Experience with Rust for backend components.
- Experience with AVFoundation for real-time audio processing.
- Track record of shipping standout apps or standout features.
- Deep expertise in iOS development, particularly with Swift.
- Ability to deliver results quickly in high-performance environments.
- Strong product sense and user empathy.
Compensation and Benefits
- $180,000 - $440,000 USD
- Equity compensation
- Comprehensive medical, vision, and dental coverage
- 401(k) retirement plan
- Short and long-term disability insurance
- Life insurance
- Additional discounts and perks
SpaceXAI is an equal opportunity employer.
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