xAI

xAI

Posted via Greenhouse

Mobile Android Engineer

Posted Aug 5, 2026

Role at a glance

Salary
Not Disclosed
Location
United Kingdom - England - London
Work arrangement
On-site
Employment
Full-time

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Role Summary

AI-generated

The role is for an Android engineer on a small, high-impact team creating an AI mobile application. The engineer will shape mobile experiences and work on the most critical product or technical challenge at a given time.

What You'll Do

  • Create mobile experiences for the AI application
  • Architect modern large production apps
  • Build intuitive and delightful user experiences
  • Optimize applications for performance, stability, and reliability
  • Work on the most critical product or technical challenge at any given time

Generated from the employer's posting. Verify important details before applying.

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Qualifications

Proficient in Kotlin, Jetpack Compose, and reactive programming; experienced in architecting modern large production apps; able to optimize for performance, stability, and reliability; strong product sense and ownership.

Required

  • Kotlin
  • Jetpack Compose
  • Reactive programming
  • Architecting modern large production apps
  • Performance optimization
  • Stability and reliability optimization
  • Strong product sense
  • Ownership and agency

Preferred

  • Track record of shipping standout apps or features
  • Deep expertise in the Android ecosystem
  • Android Studio
  • Gradle
  • Rust

Original job description

Content provided by the employer
View on company site

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 and strong prioritization skills are important. All employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

ABOUT THE ROLE:

We're seeking an exceptional Android 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 a keen product sense to deliver brilliance that resonates with users. You will work on the most critical product or technical challenge at any given time.

BASIC QUALIFICATIONS:

  • Proficient in Kotlin, Jetpack Compose and reactive programming.
  • Has a strong product sense and high craft bar. Builds intuitive and delightful user experiences.
  • Experienced in architecting modern large production apps while embodying technical excellence.
  • Strong sense of ownership and agency. Able to put on multiple hats and take responsibility for large areas.
  • Able to optimize for performance, stability and reliability.

PREFERRED SKILLS AND EXPERIENCE:

  • A proven track record of shipping standout apps or features that demonstrate both technical excellence and exceptional product intuition.
  • Deep expertise in the Android ecosystem and related development tools (Android Studio, Gradle, etc.).
  • Rust for working with our backend components.

COMPENSATION AND BENEFITS:

£107,000 - £262,000 GBP

Base salary is just one part of our total rewards package at SpaceXAI, which also includes equity, comprehensive healthcare and dental coverage, cash plan, income protection, life insurance, and various other discounts and perks.

SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

xAI

About the company

xAI

Large Enterprise

xAI is a cutting-edge technology company focused on developing advanced artificial intelligence solutions to enhance human capabilities and optimize decision-making processes. Founded by a team of leading experts in AI and machine learning, xAI aims to address complex challenges across various industries, including healthcare, finance, and transportation. By prioritizing ethical AI development, the company is committed to creating innovative tools that empower organizations to harness the full potential of artificial intelligence while ensuring transparency and accountability.

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