Mobile iOS Engineer

London, UK💼 Full-time💰 $180,000–$180,000🗓 2026-05-26 → 2026-10-02

Core

Building cutting-edge mobile experiences for a high-impact AI application that helps users interact with AI on mobile devices.

Role type

Senior IC iOS Engineer (AI Mobile)

Builds

High-performance mobile apps and features for xAI's AI platform

Domain

Artificial Intelligence / Mobile Development

Deliverable

product features

Required skills

Swift, SwiftUI, UIKit, performance optimization (memory/CPU/GPU), concurrency (Combine), API integration (REST/gRPC), end-to-end feature ownership

Preferred skills

Rust, AVFoundation, Apple ecosystem expertise, rapid delivery speed, product sense (via careerplan.io/jobs/5057013007-mobile-ios-engineer-at-xai)

Technologies

Swift, SwiftUI, UIKit, Combine, REST, gRPC, Rust, AVFoundation

Responsibilities

Design and craft intuitive, pixel-perfect user experiences for AI interaction; Optimize system performance for blazing-fast execution; Collaborate with AI researchers to deploy state-of-the-art models; Own complex features from architecture to App Store deployment

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 emp