Mobile Android Engineer - Grok

Pantera Capital; City of Westminster; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading technology company in the UK seeks an exceptional Android engineer to join its team. You will develop cutting-edge mobile experiences using Kotlin and Jetpack Compose, focusing on user-centric design and technical excellence. The role involves collaboration across teams to optimize app performance and deliver impactful solutions in AI. Candidates should possess strong skills in concurrency and API integration. Competitive salary and comprehensive benefits offered.

Benefits

Competitive base salary

Equity

Comprehensive medical, vision, and dental coverage

Short- and long-term disability insurance

Life insurance

Various discounts and perks

Qualifications

• Expert in Kotlin with deep knowledge of Jetpack Compose and the Android View system.
• Proficiency in performance optimization using low-level tools.
• Experience designing and shipping intuitive, pixel-perfect mobile UIs.

Responsibilities

• Create intuitive user experiences that enhance mobile AI interactions.
• Ensure high performance and responsiveness in app delivery.
• Drive technical decisions and collaborate with cross-functional teams.

Skills

Kotlin expertise

Performance optimization

Mobile UI design

Concurrency and reactive programming

API integration

Tools

Android Studio

Gradle

Job description

Overview

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.

Responsibilities

• Dream up and craft delightful, intuitive user experiences that redefine how people interact with AI on mobile, balancing technical innovation with a deep understanding of user behavior and needs.
• Obsess over every pixel, animation, and interaction, ensuring the experience feels magical, seamless, and purposeful–delivering joy and utility in equal measure.
• Build blazing‑fast, highly performant systems where every millisecond counts, while ensuring the product solves real user problems.
• Drive technical and product decisions, collaborating with AI researchers, designers, and engineers to deploy state‑of‑the‑art models globally with an eye toward maximizing user impact.

Interview Process

After submitting your application, the team reviews your CV and statement of exceptional work. If accepted, you will be invited to a 15‑minute phone interview. Successful candidates then enter the main process, which consists of 3 technical interviews:

1. Coding assessment in a language of your choice.
2. Systems hands‑on: Live problem‑solving session.
3. Project deep‑dive: Presentation of past exceptional work to a small audience.
4. Meet and greet with the wider team.

All interviews are conducted via Google Meet. We aim to finish the main process within one week.

Qualifications

Required:

• Expert in Kotlin with deep knowledge of Jetpack Compose and the Android View system.
• Proficiency in performance optimization—memory, CPU, GPU—using low‑level tools to deliver blazing‑fast systems.
• Experience designing and shipping intuitive, pixel‑perfect mobile UIs that redefine how users interact with AI, driven by product design and user needs.
• Skilled in concurrency and reactive programming (Coroutines, Flow) for responsive, real‑time apps.
• Built high‑throughput integrations with APIs (REST, gRPC) or AI model outputs, ensuring seamless data flow while aligning with product goals.
• Capability of owning complex features end‑to‑end, from architecture to Play Store deployment, with a focus on speed, scalability, and delivering measurable user value.

Preferred:

• Deep expertise in the Android ecosystem and related development tools (Android Studio, Gradle, etc.).
• Experience with Rust for backend components.
• Experience with Media3 or ExoPlayer for real‑time audio processing.
• Proven track record of shipping standout apps or features demonstrating technical excellence and product intuition.

Culture & Expectations

• Technically exceptional: Deep expertise in Android development, particularly with Kotlin.
• Efficient: Deliver results swiftly, often in a fraction of the time others require.
• Hardworking with high agency—take initiative and make things happen both technically and from a product perspective.
• Product‑minded: Strong product sense; empathize with users, anticipate needs, and translate into features that delight and deliver value.
• Strong communication skills—concise and accurate sharing of knowledge with teammates.

Benefits

• Competitive base salary.
• Equity.
• Comprehensive medical, vision, and dental coverage.
• Short‑ and long‑term disability insurance.
• Life insurance.
• Various discounts and perks.