Mobile Engineer (Android)

Onhires
Europe +3 more
Remote

Who this role is best for

Best suited to Android developers with AI integration experience working in globally distributed teams focused on productivity applications.

Best fit for

  • Mid-level Android engineers with 3+ years of Kotlin experience and AI integration expertise
    — “3+ years of Android development experience using Kotlin
  • Candidates who have published production apps and understand AI workflow UX design
    — “Published production apps on the Google Play Store
  • Professionals comfortable with on-device inference and backend API integration
    — “Experience with MLKit or light on-device inference

Things to consider

  • Must handle AI-specific challenges like latency and partial failures in production
    — “Comfort working in environments with latency, partial failure, and non-deterministic behavior

How to stand out

  • Highlight specific AI integration projects using LLMs or vision APIs in your portfolio
    — “Integrate AI-powered features (chat, vision, voice, recommendations) via backend APIs
  • Demonstrate experience with performance optimization for AI-heavy mobile workflows
    — “Optimize performance, memory usage, and responsiveness for AI-heavy flows
  • Showcase your ability to design UX patterns for streaming AI responses and retries
    — “Design UX patterns for AI interactions, including streaming responses, retries, and partial results
Pace · SteadyCollaboration · MediumAutonomy · MediumDecision Impact · IndividualLevel · Mid

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • building production-grade Android applications
  • integrating AI features
Typical background
android software engineermobile developer

Skills & requirements

Required

Android DevelopmentKotlinAI IntegrationPerformance Optimization

Preferred

MlkitLight On-device Inference

Stack & domain

KotlinRESTGrpcCoroutinesFlowMlkitTensorflow LiteCollaborationAndroidAIMobile

About the role

Original posting from Onhires via Ashby

We’re hiring on behalf of A1, a high‑talent team building the next generation of AI‑native productivity applications. Their mission is to replace repetitive digital work with AI that can reliably complete real tasks for everyday users.

Rather than building another chatbot, A1 is creating long‑running AI workflows that manage conversations, coordinate actions, maintain context, and interact with external services — all with minimal user input. The product is designed for reliability, persistent context, and real‑world task completion, helping users save up to 90% of their time on everyday digital work.

ROLE

As an Android Software Engineer, you will own the Android client experience — shaping how AI feels, behaves, and performs on mobile devices. This is not a thin client role: you will build a production‑grade Android application where AI interactions are core to the product, and performance, reliability, and clarity are critical.

KEY 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.

IDEAL EXPERIENCE

  • 3+ years of Android development experience using Kotlin.
  • Hands‑on experience integrating AI features (LLMs, 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 working 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.

EXPECTED OUTCOMES

  • Stable, smooth, and reliable Android applications for real‑world use.
  • Optimized performance: responsive, low‑latency, and efficient on memory and CPU.
  • Early detection and resolution of production issues with clear root‑cause analysis.

TECH STACK

  • Kotlin / Java
  • SQL / NoSQL
  • TensorFlow Lite (on‑device inference)

HOW THEY WORK

A1 believes the best products are built by small, world‑class teams. They operate with high talent density, collective decision‑making, and rapid execution — balancing quality with speed. Joining the team means bringing structure, exercising judgment, and executing independently, all while contributing to a product designed to feel truly magical for users.

INTERVIEW PROCESS

If there is a fit, expect 3–4 interviews conducted virtually or onsite. Applications are evaluated directly by technical team members. Transparency and efficiency are core values, so decisions are made promptly. For exceptional candidates, this is not just a job offer — it’s an invitation to join a team bringing AI’s practical benefits to billions globally.

Source: Onhires careers (Ashby)

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