Senior Mobile Engineer - iOS & Android (Real-Time Messaging)

F-Technologies LLC; Dubai; On-site; AED 300,000 - 520,000; Full time

Benefits offered by this job

Visa sponsorship

Senior engineering team mentoring

Job summary

F-Technologies LLC in Dubai is seeking a senior mobile engineer to own the real-time stack for iOS and Android, ensuring instant messaging, live feeds, presence, and resilient data handling. You may work natively or with a cross-platform stack, and you will shape the real-time architecture while delivering a native feel on each platform.

You will implement the connection layer, offline-first sync, and notifications, while driving performance, security, and robust CI/CD processes.

Qualifications

• 6+ years of mobile development with apps shipped to App Store and Google Play.
• Strong depth in native iOS (Swift) and native Android (Kotlin); or senior cross-platform with native modules.
• Hands-on experience with real-time features: messaging, live feeds, presence.
• Working knowledge of real-time protocols (WebSocket, XMPP).
• Offline-first data, push notifications, background execution.

Responsibilities

• Own the mobile architecture for iOS and Android and the shared real-time core.
• Build the connection layer (WebSocket / XMPP): ordering, delivery, read receipts, presence.
• Deliver offline-first storage and sync on both platforms.
• Implement notifications (APNs, FCM) and background tasks.
• Write native code where cross-platform falls short; drive performance and security.
• Ship to stores, run CI/CD, mentor developers, review code.

Skills

Native iOS (Swift)

Native Android (Kotlin)

Real-time features

WebSocket / XMPP

Offline-first data

CI/CD / automation

Mentor engineers

Cross-platform stack (Flutter/ RN)

Performance & security

Tools

Xcode

Android Studio

Git

CI/CD tools

Firebase / push services

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:

We are looking for one engineer who can own the real-time side of our products on both iOS and Android: 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 can work natively on both platforms, or with a cross-platform stack backed by strong native skills. You will set the mobile real-time architecture, build the core once and make it feel native on each platform.

Responsibilities:

• Own the mobile architecture for iOS and Android, including the shared real-time core used across our business, news and social apps.
• Build the connection layer (WebSocket / XMPP): reconnect, message ordering, delivery and read receipts, presence, typing and live feed updates.
• Deliver offline-first storage and sync on both platforms.
• Implement notifications and calls: APNs / PushKit / CallKit on iOS; FCM / WorkManager / ConnectionService on Android.
• Write native platform code where cross-platform falls short (background tasks, notification extensions, audio / video).
• Drive performance, stability and security (E2EE support, secure storage) to production-scale standards.
• Ship to both stores, run CI/CD, mentor developers and review code.

Requirements:

• 6+ years of mobile development, with production apps shipped on both the App Store and Google Play.
• Proven depth in native iOS (Swift) and native Android (Kotlin); or senior Flutter / React Native / Kotlin Multiplatform with hands-on native modules on both platforms.
• Hands-on experience building real-time features: an instant messaging / chat app is strongly preferred; live feeds, social or live-update apps also considered.
• Working knowledge of XMPP or an equivalent real-time protocol (WebSocket, MQTT).
• Strong background in offline-first data, push notifications and background execution on both platforms.

Nice to Have:

• Understanding of Erlang-based messaging servers (ejabberd / MongooseIM) - no Erlang coding required.
• End-to-end encryption (Signal protocol), WebRTC calls.
• Experience with news or social media apps; Arabic / RTL UI; Flutter.

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.