Muhammad U.

I keep large Android device fleets running unattended. Currently 1500+ physical devices in production for automation workloads. Over a 9-month engagement I built and maintained a client's automation engine, fleet reliability layer and app-compatibility diagnostics, with the core running continuously for months without intervention. What I'm hired for: - Device-fleet automation at scale — AccessibilityService/UiAutomator engines, JSON-driven workflows, watchdogs, recovery, structured logging, remote job queues - Reverse engineering & app analysis — smali/jadx/Frida, native libs, traffic analysis for authorized testing, installer/licensing/attestation diagnostics - App compatibility diagnostics — tracing why apps fail on fleet, rooted or multi-user devices (installer-source checks, licensing flows, attestation, network risk scoring) and designing supported workarounds - Fleet infrastructure — ADB at scale, Magisk/Zygisk modules, multi-user and work profiles, device provisioning and profile cloning, self-updating agents, proxy and network routing per device - AOSP & system work — custom ROMs, framework services, CTS/Tradefed, OTA (A/B and legacy) deployed on 50K+ devices - Production Android apps — Kotlin/Java, AccessibilityService, DPC/MDM, Play Console compliance Background: Android System Test Automation at Sony Mobile (Xperia, Android S/T/U, CTS). 4+ years freelance, 290+ completed orders, 10+ apps on Google Play with $50K+ organic revenue. BSCS, FAST Lahore. How I work: fixed first milestone so you can verify before committing, written daily status, code and docs you own. I don't take jobs I can't finish. If your problem is "these devices or apps need to run reliably without a human," send it over.