Qasim Akbar

Senior Android Engineer with 7+ years of hands-on experience building production-grade Android applications. Specialist in live streaming, video playback, and real-time media using ExoPlayer, Media3 (Jetpack), HLS/DASH protocols, and low-latency socket-based communication. Deep expertise in Kotlin, Java, MVVM, and Jetpack Compose.

Proven track record delivering high-complexity projects — including Play Store-compliant SDK 35 migration with 16KB page-size fixes, Agora-based real-time communication, and P2P TCP/UDP streaming apps. Top Rated freelancer on Upwork with 100% Job Success Score. Seeking a full-time remote Android role.

Senior Android & Backend Developer - Xelogix Pvt Ltd

(2019-01)

• Architected and delivered a Live YouTube Video Transmission App using real-time streaming protocols and socket-based media pipelines.
• Integrated ExoPlayer and migrated key projects to Media3 (Jetpack), improving playback stability and reducing latency by significant margins.
• Built TCP/UDP P2P streaming module for peer-to-peer real-time audio/video communication.
• Resolved critical 16KB page-size Android limitation by decompiling and patching JAR files — enabling Play Store SDK 35 compliance.
• Developed and deployed Agora-based real-time communication (voice/video calls) across two production apps.
• Integrated Stripe, Coinbase, and crypto payment gateways into Android + backend systems.
• Managed Linux servers including Asterisk VOIP, XMPP, and Mattermost deployments.
• Delivered multilingual, multi-module booking platform with real-time socket updates and OTP authentication.

Android Developer - Akhter IT Solutions

(2017-09 - 2018-12)

• Built Android applications featuring Google Maps, street view, weather APIs, and REST integrations in Java.
• Developed socket-based real-time communication features for a Ride-Sharing app.
• Integrated live chart libraries, geolocation, and push notification systems.

Senior Android Contractor - Upwork Platform

(2023-01)

• Chero Apps Modernization: Full SDK 35 upgrade, 16KB page-size fix via JAR decompilation, Play Store resubmission and approval. Client review: 5.0 ★
• Agora Integration & Real-Time Comms: Repaired map functionality, stabilised push notifications, integrated Agora live communication. Client review: 5.0 ★
• Multi-App Platform Build: Dynamic booking logic, multilingual content, real-time socket updates, payment integration, admin dashboard. Client review: 5.0 ★
• PCM Audio Encoding: Encoded PCM audio chunks to Opus codec and streamed over socket.io with client-side decoding.

Bachelor of Science - Software Engineering - University of Azad Jammu & Kashmir (2013-01 - 2017-01)