Senior Mobile iOS Engineer
SpaceXAI builds frontier AI models and products including the Grok conversational assistant and a multimodal developer API.
Funding history
About SpaceXAI
SpaceXAI is a US-based AI company focused on accelerating scientific discovery and understanding the universe through reasoning, voice, image, video, and generative AI systems. Formerly xAI, it was acquired by SpaceX effective February 2, 2026, while continuing to operate the x.ai site and services.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build intuitive, pixel-perfect iOS experiences and optimize performance across memory, CPU, and GPU. You will collaborate on technical and product decisions, run A/B tests, identify issues, improve features from user feedback, and own complex functionality from architecture through App Store deployment.
Requirements
- Experience with Swift and UIKit
- iOS development expertise
- Knowledge of Apple development tools
- Performance optimization skills across memory, CPU, and GPU
- Knowledge of concurrency and reactive programming with Combine
- Experience integrating APIs or AI model outputs
- Ability to own features from architecture through App Store deployment
Responsibilities
- Craft intuitive user experiences
- Optimize pixels, animations, interactions, and system performance
- Drive technical and product decisions with design and engineering partners
- Own product quality through A/B tests and proactive improvements
- Improve the app using user feedback and daily product experience
Benefits
- Equity
- Medical coverage
- Vision coverage
- Dental coverage
- 401(k) retirement plan
- Short-term disability insurance
- Long-term disability insurance
- Life insurance
- Discounts and perks