← Back to list
Job

Android Software Engineer

Mobile Developer • Remote • Full-time • 📍 Spain

You'll own the Android client experience for an AI-native mobile product — building a production Kotlin app where AI interaction performance, reliability, and clarity are core to the product.

Responsibilities

  • 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

Nice to have

  • Experience with MLKit or light on-device inference
  • Published production apps on the Google Play Store

Soft skills

Independent, structured way of workingSound judgment under ambiguityFast-paced, collaborative teamworkBalances shipping quality work with continuous learning

About the company

A1's mission is to build a proactive smart assistant for everyday users, bringing intelligence to conversations, errands, and workflows with minimal prompting. The product is built around reliable long-running workflows, persistent context, and real-world task completion, aiming to cut users' daily task time by roughly 90%.

Similar jobs