About A1

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There are over 5 billion users using basic applications today such email, notes, tasks that are not AI-native. Our mission is to build a proactive smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows, with minimal prompting.

Our 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 behavior. Our objective is to help users complete tasks daily enjoyable with over ~90%* reduced time.

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.





Focus

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- 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.

Idóneo Experiences

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- 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.
- Stro

📌 Android Software Engineer (España)
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📍 España