Senior Android Engineer (Real-Time Messaging)

F-Technologies LLC; Dubai; On-site; AED 180,000 - 300,000; Full time

Job summary

F-Technologies LLC, a Dubai-based tech company, seeks an experienced Android Engineer to own the real-time layer of our mobile apps across business, news and social products. You will architect and ship high-performance Kotlin apps with Jetpack Compose, ensuring instant messaging, live feeds, and reliable notifications end-to-end.

Responsibilities include building a real-time layer with persistent connections (WebSocket/XMPP), offline-first storage with Room/SQLDelight, and ensuring smooth

Qualifications

• 5+ years of professional Android development with production apps on Google Play.
• Hands-on experience with real-time features such as instant messaging and live feeds.
• Expert Kotlin, Coroutines/Flow, Jetpack Compose, MVVM/ Clean Architecture, Hilt/Dagger.
• Experience with real-time protocols like XMPP or WebSocket.
• Deep understanding of Android background execution and notification delivery.
• Unit and UI testing, Git, and code-review practices.

Responsibilities

• Architect and build high-performance Android apps in Kotlin with Jetpack Compose.
• Build real-time layer: WebSocket/XMPP connections, message ordering and delivery.
• Implement offline-first storage with Room/SQLDelight and Coroutines.
• Ensure reliability under Doze and optimize for low-end devices.
• Collaborate with backend/iOS/QA and manage Google Play releases and CI/CD.
• Apply security best practices and data protection.

Skills

Kotlin

Jetpack Compose

MVVM / Clean Architecture

Coroutines / Flow

Hilt / Dagger

Android background execution

Unit/UI testing

Google Play deployments

Tools

Room

SQLDelight

WorkManager

CameraX

Media3

Google Play Console

Job description

About Us:

We are a Dubai-based technology company that designs and builds mobile applications across several categories — business applications, news applications and social media applications — for users across the GCC. We work with an automation-first, security-first, quality-first mindset and are growing a senior mobile team.

About the Role:

This role focuses on the real-time side of our products: instant messaging and chat, live feeds and breaking-news updates, presence, notifications and in-app communication that must feel instant and never lose data. You will own the real-time layer of our Android apps end to end — architecture, persistent connections, offline sync, notifications and performance across a wide range of devices — and apply it across our business, news and social products.

Responsibilities:

• Architect and build high-performance Android apps in Kotlin with Jetpack Compose.


• Build the real-time layer: persistent WebSocket / XMPP connections, reconnect and backoff, message ordering, delivery and read receipts, typing and presence, live feed updates.


• Build offline-first storage and sync with Room / SQLDelight, Coroutines and Flow.


• Deliver reliable messages, alerts and calls under Doze and OEM battery limits: FCM high-priority, WorkManager, foreground services, ConnectionService.


• Handle media: chunked upload/download, compression, voice notes, CameraX / Media3.


• Keep apps fast and stable on low-end devices: profiling, memory, ANR and crash-free targets.


• Apply security best practice: Android Keystore, certificate pinning, end-to-end encryption support.


• Work with backend, iOS and QA on protocol design and feature parity; own Google Play releases and CI/CD.

Requirements:

• 5+ years of professional Android development, with production apps live on Google Play.


• Hands-on experience building real-time features: an instant messaging / chat app is strongly preferred; live feeds, social or live-update apps also considered.


• Expert Kotlin, Coroutines / Flow, Jetpack Compose, MVVM / Clean Architecture, Hilt / Dagger.


• Working knowledge of XMPP (e.g. Smack) or an equivalent real-time protocol (WebSocket, MQTT).


• Deep understanding of Android background execution, notification delivery and device fragmentation.


• Unit and UI testing (JUnit, Espresso), Git, code review culture.

Nice to Have:

• Understanding of messaging backends such as ejabberd / MongooseIM (Erlang) — no Erlang coding required.


• End-to-end encryption (Signal protocol), WebRTC calls, Kotlin Multiplatform.


• Experience with news or social media apps; Arabic / RTL UI; Swift or Flutter exposure.

What We Offer:

• Competitive package based on experience, plus UAE employment visa.


• Ownership of the real-time layer across multiple live products, with a senior team.