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Yazan Aesmael

@yazanaesmael

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Senior Android engineer specializing in real-time Kotlin Multiplatform apps and Compose performance improvements.

India

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What I'm looking for

I’m looking for a fully remote, distributed team where I can own end-to-end mobile features, build high-throughput real-time systems, and drive migrations to Kotlin Multiplatform + Compose with rigorous performance and CI/CD.

I’m a Lead Android engineer who scaled a live, real-time consumer app from zero to 100,000+ users, engineering a concurrent Socket.IO layer with an always-fresh, never-stale caching model. I own features end to end—from conception through delivery—in fully distributed remote teams, and I lead migrations from native Android to shared Kotlin Multiplatform + Compose Multiplatform code.

I’m strongest in high-throughput real-time systems and polished consumer UX, cutting server payloads by 95% and reducing UI jank by 90% while improving startup time by 50%. I also set up CI/CD on GitHub Actions, mentored junior engineers, and advocate disciplined Compose patterns for measurable performance.

Experience

Work history, roles, and key accomplishments

Current

Independent Senior Engineer

Current

Freelance Consultant

Dec 2023 - Present (2 years 7 months)

Ported a production real-time BLE tracking app from Android-only to a shared Android + iOS codebase using CoreBluetooth. Shipped consumer-facing Android features for a large retail network and advised clients on Kotlin Multiplatform architecture and Compose performance.

Kotlin Multiplatform Compose CoreBluetooth

Current

Lead Android Engineer

Current

Lifease Solutions

Nov 2023 - Present (2 years 8 months)

Solo architected and engineered a live cricket app, scaling from zero to 100,000+ active users with a room-based Socket.IO layer. Leading a migration from native Android to Kotlin Multiplatform + Compose Multiplatform and improving performance, payload size, and CI/CD automation.

Kotlin Kotlin Multiplatform Compose Multiplatform Jetpack Compose Coroutines Flow Razor 8 Socket.IO WebSockets REST APIs ETag Caching GitHub Actions CI CD

Android Engineer

TestRight Nanosystems

Jul 2023 - Aug 2023 (1 month)

Built an end-to-end biotech data capture system by authoring an Android client and ESP32 firmware in C++ for low-latency telemetry transmission. Implemented real-time spectrometer graphing at high refresh rates without dropping frames during active capture sessions.

Android Kotlin C++ESP32 Firmware Telemetry

BeReel

Built a multi-clip Compose Multiplatform video editor with a custom Canvas timeline and a four-state editor state machine. Implemented a two-stage frame-accurate baking pipeline shared across Android and iOS, plus a feed-ranking algorithm and server-side moderation pipeline.

Compose Multiplatform Android and iOS Shared Video Pipeline Frame Level Precision

Kmp-Skeleton

Created a public Kotlin Multiplatform template with modular architecture and Gradle convention plugins for centralized dependency and build management.

Kotlin Multiplatform Modular Architectures Gradle Convention Plugin

Attesta

Solo-built a Kotlin Multiplatform app with Compose Multiplatform UI for the Apple App Store. Implemented DI with kotlin-inject, expect/actual platform layers, a Supabase backend, and StoreKit/ledger-based metering.

Kotlin Multiplatform Compose Multiplatform Supabase

JetOverlay

Open-sourced a lightweight, Compose-first Android overlay SDK featuring physics-based dragging and scoped Lifecycle/ViewModel handling. Includes Foreground Service persistence for overlay functionality.

Jetpack Compose Physics Based Dragging Lifecycle ViewModel Foreground Service Persistence