Open to opportunities

Malik Muhammad

@malikmuhammad

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Lead Mobile Developer specializing in Android/iOS modernization and scalable cross-platform delivery.

United States

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What I'm looking for

I’m looking to lead Android/iOS product work—modernizing apps with Compose and Clean Architecture, improving performance and reliability, and mentoring teams to deliver scalable, privacy-first features from ideation through release.

I’m a mobile development leader with 12+ years of experience delivering production apps across Android and iOS. I’ve successfully released 8 Android applications on the Google Play Store and 3 iOS applications on the Apple App Store, with a strong focus on shipping high-quality, maintainable features.

My core strength is building scalable Android systems with Kotlin, Jetpack Compose, and Clean Architecture. I deliver reusable Android libraries and modular SDKs, implement advanced patterns like MVVM/MVI, and use dependency injection with Hilt/Dagger while optimizing builds with Kotlin DSL modules and R8.

I also drive performance, reliability, and testing discipline—profiling memory, rendering, GPU usage, ANRs, crashes, and battery impact using tools like LeakCanary and Crashlytics. I’ve led migrations from legacy XML to Compose and helped reduce crash rates through targeted fixes and strict backpressure strategies, while validating GraphQL integrations with Apollo tooling.

Beyond engineering, I lead teams in Agile/Scrum/SAFE workflows, mentor engineers, and own SDLC from ideation to release. I collaborate across Design, Data Science, QA, and Product to deliver privacy-first capabilities, and I bring cross-platform parity through Kotlin Multiplatform and SwiftUI-focused work.

Experience

Work history, roles, and key accomplishments

Current

Lead Mobile Developer

Current

X (Formerly Twitter)

Dec 2024 - Present (1 year 6 months)

Led migration of a social media app from legacy XML to a responsive Jetpack Compose framework, including MVVM-to-MVI feature work to manage complex tab state interactions. Reduced notification-handling crash rates from 2.1% to 0.4%, built GraphQL/Apollo integrations, and developed a reusable ExoPlayer-based VideoPlayer module.

Kotlin Jetpack Compose MVI GraphQL ExoPlayer WorkManager

Senior Android Developer

Ally Bank

Jan 2021 - Nov 2024 (3 years 10 months)

Helped deliver end-to-end features for a secure mobile banking app, including payments, transfers, deposits, and account management using Java/Kotlin and Jetpack components. Led a Java-to-Kotlin migration feature-by-feature, added OAuth 2.0 + BiometricPrompt security, and improved performance via concurrency primitives and R8 optimization.

Java Kotlin Android Jetpack Espresso Junit React Native OAuth 2.0

Senior Mobile Developer

Ralph Lauren Corporation

Aug 2019 - Dec 2020 (1 year 4 months)

Designed modular, reactive product information and cart entry pages, improving UI responsiveness with MVVM, Kotlin coroutines, and Flow/LiveData patterns. Supported offline-first storage with Room, strengthened security with optimized OAuth 2.0 flows, and built robust release/CI workflows with Jenkins and security scanning (Veracode).

Kotlin MVVM Coroutines Flow Jetpack Compose OAuth 2.0

Senior Mobile Developer

Dish Network

Mar 2018 - Jul 2019 (1 year 4 months)

Led a team of 6 developers building and maintaining the Dish Anywhere app, including BLE device integrations for multi-device viewing experiences. Migrated architecture toward MVP and improved async processing by adopting Kotlin coroutines, while implementing biometrics via BiometricPrompt and real-time syncing with Firebase Realtime Database.

Kotlin Clean Architecture WorkManager Firebase Realtime Database Coroutines RxJava Firebase Crashlytics

Senior React Native Developer

Hawaiian Airlines

Mar 2017 - Feb 2018 (11 months)

Built cross-platform features for day-of-travel efficiency, including mobile check-in, real-time notifications, and interactive maps using React Native. Implemented state management to reduce props drilling, added geolocation with react-native-maps, secured data with keychain storage and SSL pinning/JWT, and delivered testing coverage with Jest/Enzyme and Detox.

React Native TypeScript Redux toolkit React Navigation Jest Enzyme Detox SSL Pinning

Android Developer

Baker Hughes

Jan 2016 - Feb 2017 (1 year 1 month)

Developed the TransPort PT900 Android app enabling field technicians to compile real-time data for on-site operations, integrating with specialized flow meter firmware. Built secure authentication and async networking with OAuth/SSL, replaced Volley with RxJava + Retrofit, and supported reliability through TDD, Espresso/ui-automator testing, and AWS S3 media storage.

Kotlin Java RxJava Retrofit OAuth gRPC SSL TLS Espresso Amazon S3

Native Android App Developer

Stellantis Fleet

Jan 2014 - Dec 2015 (1 year 11 months)

Built an enterprise fleet management Android app for vehicle tracking, maintenance scheduling, driver performance analytics, and compliance reporting. Implemented real-time GPS tracking, caching with Realm, REST API contracts, background location handling, and QR/VIN scanning with ZXing and a custom NDK AIDL scanner.

Java Realm REST APIs QR Barcode Scanning (ZXing)NDK (AIDL)RxJava