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Android Developer

S3tel. Inc.
Dubai, UAE
Full Time
Mid
1 weeks ago
JavaAndroid SDKAndroid StudioGradleREST APIsJSON
Free

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JavaAndroid SDKAndroid Studio
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About the Role

  • We are looking for a hands on Android Developer with strong native Android experience in Java. The role is suited for someone who can build reliable mobile features, work with Android platform APIs, debug on real devices, and handle real time data from sensors, location, Wi Fi/Bluetooth, and other d
  • The ideal candidate should be practical, detail oriented, and comfortable working on features where data may be noisy, delayed, stale, or device dependent. This is not only a UI development role; it requires platform level Android thinking, strong debugging habits, and the ability to improve behavio

Key Responsibilities

  • Develop and maintain native Android features using Java, Android Studio, Gradle, and standard Android development practices.
  • Work with Android lifecycle, permissions, services, foreground/background behaviour, receivers, timers, callbacks, and resource cleanup.
  • Build real time mobile features involving sensors, location, movement tracking, device APIs, maps, and continuously changing data.
  • Integrate with Wi Fi, Bluetooth/BLE, location, SensorManager, and other Android platform or hardware related APIs where required.
  • Process and validate noisy or unreliable data streams using practical logic such as smoothing, confidence checks, stale data handling, jump rejection, and fallback states.
  • Debug issues on actual Android devices using Logcat, Android Studio tools, crash logs, profiling, reproducible test cases, and device specific investigation.
  • Optimize application performance, battery usage, responsiveness, memory management, and background execution behaviour.
  • Write clean, modular, maintainable code that can be safely integrated into an existing codebase.
  • Collaborate with backend, frontend/cross platform, QA, and product teams to deliver stable mobile features.
  • Document technical assumptions, edge cases, debugging findings, and implementation decisions clearly.

Required Skills & Experience

  • 2–4 years of hands on Android development experience, preferably with native Android using Java.
  • Strong understanding of Android fundamentals including Activity/Fragment lifecycle, services, BroadcastReceivers, permissions, threading, and background execution limits.
  • Practical experience with Java in Android projects, including clean code structure, error handling, interfaces/classes, callbacks/listeners, and maintainable module design.
  • Experience debugging Android applications on real devices, not only emulators.
  • Understanding of runtime permissions for location, Bluetooth, Wi Fi/device APIs, and graceful handling of denied or unavailable permissions.
  • Ability to work with asynchronous flows, delayed responses, API timeouts, retries, and failure states.
  • Good understanding of REST APIs, JSON, authentication flows, and mobile backend integration.
  • Awareness of memory leaks, listener cleanup, long running callbacks, battery impact, UI jank, and performance bottlenecks.
  • Comfortable using Git and working in an existing team codebase.

Good to Have

  • Kotlin knowledge or ability to read and modify Kotlin code when required.
  • Hands on exposure to Android sensors such as accelerometer, gyroscope, magnetometer, orientation, or barometer.
  • Experience with Wi Fi, Bluetooth/BLE, scanning APIs, device capability checks, and Android OS restrictions.
  • Experience with maps, live marker movement, tracking, navigation, positioning, or route related mobile features.
  • Basic understanding of data filtering concepts such as moving average, median filter, low pass filtering, confidence scoring, outlier rejection, and smoothing vs lag trade offs.
  • Experience creating or maintaining React Native native Android modules.
  • Exposure to Firebase Crashlytics, analytics, logs, performance profiling, or similar mobile observability tools.

Candidate Profile

  • Strong practical problem solver who can reason through unstable or device dependent behaviour.
  • Comfortable testing on physical Android devices and investigating differences across OS versions and hardware models.
  • Does not treat algorithms or filters as “magic fixes”; understands trade offs between smoothness, responsiveness, accuracy, and battery usage.
  • Can separate source data issues from processing logic, state updates, UI rendering, and network/API delays.
  • Takes ownership of debugging, logging, documentation, and incremental improvement rather than relying on guesswork.
  • Communicates clearly with technical and non technical team members.

What Success Looks Like

  • Reliable Android features that work consistently across real devices and OS versions.
  • Clean handling of noisy, stale, delayed, or low confidence data without creating unstable user experiences.
  • Good logs and debugging visibility for device level issues.
  • Balanced decisions around performance, battery, responsiveness, and accuracy.
  • Maintainable code that other developers can understand and extend.

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