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Sarfraz Akhter

@sarfrazakhter

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Senior Android and React Native developer delivering realtime WebRTC/LiveKit media experiences and MERN-backed apps.

India

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What I'm looking for

I’m looking for a senior mobile role where I own realtime WebRTC/LiveKit experiences and modern Android/React Native architecture, while collaborating on MERN-backed APIs and reliability-focused releases.

I’m a Senior Android developer with 9.5+ years of experience building Native Android, React Native, and MERN applications across EdTech, telecom, payments, logistics, and eCommerce. I thrive on end-to-end delivery—from architecture and integrations to release workflows—so products stay reliable and scalable.

My strongest work centers on realtime media and communication features: online classes and meetings with screen + voice sharing using WebRTC, LiveKit, and WebSocket. I’ve built room-based sessions, offline-first storage, and cross-device behavior, including offline LAN sharing on AOSP panels, while keeping user experience consistent across Android, Windows, and macOS.

Technically, I bring depth in Kotlin, Java, Jetpack Compose, Clean Architecture, and MVVM/MVP patterns, plus React Native with TypeScript and modern state management (Redux/Redux Toolkit, Context). On the backend side, I’ve worked with Node.js, Express, MongoDB, JWT auth, and API design, including payment gateway flows, JWT auth, and push notification systems (FCM) with careful reliability improvements using tools like Crashlytics.

Experience

Work history, roles, and key accomplishments

Current

Mobile Application Developer

Current

Coltec Global

Sep 2024 - Present (1 year 9 months)

Developed and released Qeeb-Class, Qeeb-Teach, Qeeb-Learn, and Qeeb-Instant for classroom, teacher, and student workflows. Built Qeeb-share with WebRTC/LiveKit/WebSocket for realtime screen and voice sharing, including room-based sessions and offline LAN sharing.

Kotlin Jetpack Compose WebRTC LiveKit WebSockets Clean Architecture Android AOSP

Android Developer

Gajam India Pvt Ltd

Jul 2021 - Jul 2024 (3 years)

Delivered DL-One, DL-Delivery, DL-Society, TracknTrace, DL-Hatt, and LUYM across Android and React Native for logistics, commerce, and education workflows. Built EazyBuy in React Native with Redux Toolkit, TypeScript, RealmDB, FCM, and payment gateway integration, including SSL pinning and AWS S3 media storage.

React Native TypeScript Redux toolkit Payment Integration SSL Pinning AWS S3

Android Developer

Silver Touch Technologies

Mar 2019 - Jun 2021 (2 years 3 months)

Delivered telecom regulatory utilities for TRAI including DND, MyCALL, MySpeed, Channel Selector, and related tools. Created reusable React Native UI modules using Context API and Redux and refactored legacy modules toward MVVM while handling Play Console release cycles.

React Native Context API Redux MVVM Telecom Refactoring

Android Developer

Acodet Solution Pvt Ltd

Jun 2018 - Feb 2019 (8 months)

Built Shamel SMS and Noor School Android apps, migrating key modules from Java to Kotlin. Implemented multilingual support and integrated Google APIs to enhance school and messaging workflows.

Kotlin Android Java Kotlin Multilingual Support

Android Developer

StopnSolve Multimedia Pvt Ltd

Mar 2015 - May 2018 (3 years 2 months)

Developed Mi-Circle, PayMyWallet, and Paighamz with background services and FCM notifications. Implemented asynchronous API handling to support engagement, messaging, and wallet/payment flows.

Push Notifications REST APIs Android App Development Payment App Features