Mobile Android Engineer

London, UK💼 Full-time💰 $107,000–$107,000🗓 2026-02-21 → 2026-09-23

Core

Building cutting-edge mobile experiences for a high-impact AI application that understands the universe and aids humanity.

Role type

Senior Android Engineer (AI product)

Builds

The world's most valuable AI application (mobile interface)

Domain

Artificial Intelligence / Mobile Development

Deliverable

production ML models | product features

Required skills

Kotlin, Jetpack Compose, reactive programming, modern app architecture, performance optimization, stability engineering

Preferred skills

Rust, deep Android ecosystem expertise, shipping standout apps

Technologies

Android Studio, Gradle, Rust

Responsibilities

Shape cutting-edge mobile experiences, architect modern large production apps, optimize for performance and stability, take ownership of critical product or technical challenges

Seniority

Senior, hands-on IC

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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