Mobile Engineer — React Native

2 days ago

Nairobi, Nairobi Area, Kenya ClusterBox Full time 30,000 - 90,000 per year

Company Description

At ClusterBox, we believe business tools should work together, not apart. Our team is developing a unified system that helps brands and sellers stay organized, connected, and in control. Although still in stealth mode, we are making steady progress on our goal of building something new and impactful. Stay tuned for more updates as we continue to innovate.

Role Description

This is a full-time hybrid role for a Mobile Engineer at ClusterBox, based in Nairobi County, Kenya, with some work-from-home flexibility. We're hiring a
Mobile Engineer
to build high-quality, performant
cross-platform mobile applications
for both iOS and Android from a single codebase. You'll own the entire app lifecycle — architecture, performance, release pipelines, and user experience.

Key Responsibilities

  • Develop and maintain mobile apps using
    React Native (Expo)
    or
    Flutter
    .
  • Implement secure authentication, deep linking, and push notifications.
  • Build optimized and reusable UI components for messaging, activity feeds, and task workflows.
  • Ensure smooth offline experience (caching, background sync, retry queues).
  • Integrate REST/GraphQL APIs, handle edge cases and network failures gracefully.
  • Manage mobile CI/CD pipelines, TestFlight/Play Console releases, and OTA updates.
  • Track performance metrics and maintain ≥99% crash-free rate across builds.

Required Skills & Experience

  • 3–6+ years of professional mobile development experience.
  • Strong command of
    React Native (Expo)
    or
    Flutter
    , with at least 3 shipped apps per store.
  • Hands-on experience with
    push notifications
    ,
    deep linking
    , and
    offline-first design
    .
  • Familiar with secure local storage, background jobs, and app performance optimization.
  • Experience consuming RESTful APIs and working closely with backend teams.
  • Strong debugging and troubleshooting skills across iOS and Android.

Nice to Have

  • Prior experience building chat, booking, or CRM-style mobile interfaces.
  • Automated testing experience (Detox, Appium, or similar).
  • Familiarity with mobile analytics, crash monitoring, and feature-flag rollouts.

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