Mohamed‎ Mostafa Kobaisy 🇵🇸 Email & Phone Number

Cairo, Cairo Governorate, Eg

Cairo, Egypt

As a Senior Android Developer at Kashier, I've had the privilege of contributing to the development of cutting-edge solutions for Android POS terminals. With a focus on innovation and excellence, I've played a pivotal role in the success of +3 projects:Business App: I led the development of Kashier's merchant app on POS terminals, empowering merchants to facilitate transactions seamlessly. The app supports diverse payment options, including card, wallet, ValU, and installment plans, while also providing essential features such as sales, voids, refunds, and robust transaction management capabilities.Service Updater: I was instrumental in creating an app that functions as a Terminal Management System (TMS), enabling efficient updates for itself and other applications on POS terminals. This streamlined approach optimizes terminal performance and functionality.Injector: I played a key role in developing an application critical to the security of our operations. The Injector app ensures the integrity of every transaction by securely injecting vital keys into the terminal's HSM. I take pride in collaborating effectively with cross-functional teams and driving projects to successful fruition.

Cairo, Egypt

Developed and maintained +3 edTech products in both User and Partner Apps.Worked with multi-module projects using MVVM and Clean Architecture and utilized Kotlin, jetpack components, Dagger2, RxKotlin, and Livedata.Worked with legacy code maintained it and refactored it to push the current apps to be scaled.Wrote unit tests for all modules.

Cairo, Egypt

Developed and maintained +4 features in “Ugu” a social network platform that utilized Kotlin, jetpack components, Dagger2, RxKotlin, Livedata.Applied clean architecture for different app layers and modules besides MVVM architecture, livedata, RxJava2, Dagger2 for dependency injection, and jetpack components.Wrote unit tests for all modules.Worked on Huawei Mobile Services integrations.

Cairo Governorate, Egypt

Created +3 custom mobile applications using native technologies as per client specifications.Implemented many new features into applications that users in the market already use.Created multi-module projects using MVVM and Clean Architecture and utilized Kotlin, Dagger2, RxJava2, and Livedata.Worked with MQTT and UBUS protocols for IoT Project.My Today Card, Simplifi, Nahdi, and Milo Global apps on Google play store.

Cairo Governorate, Egypt

Created a logistics mobile application.Utilized Java and firebase authentication, database, and push notifications services.Fixed bugs and Maintained code.

Cairo Governorate, Egypt

Learned about Android Studio and Gradle build system and migrated from eclipse IDE.Learned about third-party libraries.Learned about OOP.Implemented new features using Java into 2 applications.

Used static analysis tools and manual testing to extract sensitive data from the app.Found Logical Bugs that allow the user to use the app without a subscription.Dealt with Custom recoveries to extract system-level files like wpa_supplicant.conf configuration file that stores wifi credentials.Wrote code patches to fix found security flaws.