Full job descriptionAndroid Software Engineer
London
Full time, Hybrid
The Company:
There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. The mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows with minimal prompting.
The product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. The system must handle multi-step reasoning, interact with external tools, and remain reliable despite non-deterministic model behaviour. The objective is to help users enjoy completing daily tasks in over 90% reduced time.
The Role:
As an Android Software Engineer, you own the Android client experience, how AI feels, behaves, and performs on mobile devices. This is not a thin client role. You will build a production Android application where AI interactions are core to the product, and performance, reliability, and clarity matter.
*Build and maintain production Android apps using Kotlin.
*Integrate AI-powered features (chat, vision, voice, recommendations) via backend APIs.
*Design UX patterns for AI interactions, including streaming responses, retries, and partial results.
*Optimize performance, memory usage, and responsiveness for AI-heavy flows.
*Implement analytics, logging, and feedback capture to support AI evaluation and iteration.
*Collaborate closely with backend and ML engineers on API contracts and system behavior.
*Ensure app stability, security, and scalability in production environments.
Requirements:
*3+ years of Android development experience using Kotlin.
*Hands-on experience integrating AI features (e.g. LLM, vision, speech APIs).
*Strong understanding of asynchronous programming (Coroutines, Flow).
*Familiarity with REST or gRPC APIs and structured data formats.
*Strong debugging and performance profiling skills.
*Comfort building in environments with latency, partial failure, and non-deterministic behavior.
*Experience with MLKit or light on-device inference.
*Published production apps on the Google Play Store.
Outcomes:
*Stable, smooth, and reliable real-world use android applications.
*Performance is optimized: responsive, low-latency, and efficient on memory and CPU.
*Production issues are detected early, monitored effectively, and resolved with clear root-cause analysis.
Tech Stack:
*Kotlin / Java
*SQL / noSQL
*TensorFlow Lite (on-device inference)
The Team:
The best products today in the world were built by small, world class teams. You will be joining a high talent density and hands-on team who make decisions collectively, move at rapid speed, striking a balance between shipping high-quality work and learning. Joining the team requires the ability to bring structure, exercise judgment, and execute independently. The collective goal is to give users a truly magical product.