Used Tools & Technologies
Not specified
Required Skills & Competences
Tag name is followed by "@" symbol and proficiency level value.
About proficiency levels:
- 1-2 — basic awareness. Minimal hands-on experience, and a rudimentary understanding of the technology's purpose;
- 3-6 — daily use. Comfortable and regular usage, capable of handling common tasks and challenges related to the technology;
- 7-9 — you are an expert, you can teach others, you know all the pitfalls and tricks;
- 10 — exceptional knowledge, comprehensive understanding, and adeptness in all aspects of the technology, including advanced problem-solving. Think twice before claiming or demanding such level.
Communication @ 6
gRPC @ 3
Performance Optimization @ 5
Rust @ 3
API @ 3
iOS @ 3
Swift @ 6
GPU @ 5
AI @ 3
- 1-2 — basic awareness. Minimal hands-on experience, and a rudimentary understanding of the technology's purpose;
- 3-6 — daily use. Comfortable and regular usage, capable of handling common tasks and challenges related to the technology;
- 7-9 — you are an expert, you can teach others, you know all the pitfalls and tricks;
- 10 — exceptional knowledge, comprehensive understanding, and adeptness in all aspects of the technology, including advanced problem-solving. Think twice before claiming or demanding such level.
Details
We are seeking an exceptional iOS engineer to join a small, high-impact team dedicated to creating the world’s most valuable AI application. You will shape cutting-edge mobile experiences, blending technical mastery with product brilliance, and collaborate closely with AI researchers and engineers to deploy state-of-the-art models globally.
Location: London, United Kingdom
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 to ensure 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 models and integrations at scale.
- Own complex features end-to-end, from architecture to App Store deployment.
Requirements
Basic Qualifications
- Expert in Swift, with deep knowledge of SwiftUI and UIKit.
- Proficient in performance optimization (memory, CPU, GPU) using low-level tools to deliver high-performance systems.
- Experienced in designing and shipping intuitive, pixel-perfect mobile UIs.
- Skilled in concurrency and reactive programming; experience with 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 features end-to-end, including App Store deployment and scalability considerations.
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 within apps.
- Strong product sense and ability to empathize with users and translate needs into valuable features.
- Demonstrated ability to deliver results quickly and operate at a high level of craft.
Compensation and Benefits
- Base salary: $180,000 - $440,000 USD
- Total rewards package includes equity, comprehensive medical, vision and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and other perks.
About xAI
xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. The team is small, highly motivated, and focused on engineering excellence. The organization expects hands-on contribution, strong communication, initiative, and the ability to prioritize effectively.