About me

I'm a Senior Software Engineer at EPAM Systems, specializing in building and maintaining high-impact Android applications used by millions of users worldwide. My work spans diverse and complex domains, including Bluetooth Low Energy, Android Open Source, Android Auto, and Autosar solutions. With deep expertise in Kotlin, MVVM, Dagger-Hilt, Coroutines, Clean Architecture, and robust unit testing, I focus on delivering scalable, efficient, and user-centric mobile experiences.


Throughout my career, I have demonstrated a strong ability to adopt cutting-edge technologies and implement best practices to ensure high-quality code and optimal app performance. My contributions have driven significant user engagement and satisfaction, even while addressing challenging technical requirements. By maintaining a keen focus on quality and innovation, I have consistently enhanced app functionality and user experience.


I hold a Bachelor’s degree in Computer Science from Assiut University, along with two Nanodegrees in Android Development from Udacity, reflecting my commitment to continuous learning and technical excellence. Passionate about mobile development, I thrive in collaborative environments where innovation and attention to detail are valued. My goal is to create solutions that not only meet but exceed user expectations and business goals.


Feel free to connect with me through my email at ma.sallam96@gmail.com or my professional network profiles. I'm always interested in discussing new technologies and opportunities for collaboration.

Daniel lewis
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Daniel lewis

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Experience

  1. Senior Software Engineer (Android-IOS) 📍 Wroclaw, Poland

    EPAM Systems 🗓️ Feb 2022 - present


    • Applied the proguard to prevent source code from being reverse engineered.
    • Build a new architecture using the latest android tech stack (MVVM, Jetpack compose).
    • Migrated 5 Cordova modules in the project to kotlin-Android code.
    • Migrated Android legacy code to the modular Android architecture.
    • Managed 8 Releases & 2 Hotfix Releases in 2 years and migrated several screens from MVP to MVVM .
    • Led retrospectives for the quarter survey, conducted 4 coding interviews, co-hosted monthly department updates.
    • Led successful release of Projects, introduced & drove initiatives of new features. Also,reduced app crashes by 90%, and enhanced image loading and scrolling performance.

  2. Senior Software Engineer (Android) 📍 Cairo, Egypt

    Union Coop 🗓️ Dec 2020 - Feb 2022


    • Improved App stability to 99% UnionCoop.
    • Reduces legacy code in ADC project by approximately 8% in addition to having implemented the feature of extending parking tickets.
    • Did regulatory changes for ADC app & supported the customer representative in buildin the App to release the changes.
    • Introduced Rootberry to prevent applications from working on rooted devices, which saves user privacy.
    • Developed resource overriding solution as a part of AOSP.
    • Developed feature to connect to android device inside the android o.s using BLE.
    • Fully Developed App used by POS Android devices using kotlin.

  3. Software Engineer (Android) 📍 Cairo, Egypt

    IHorizons 🗓️ Oct 2018 - Dec 2020


    • Developed the OTP one-time Password to simplify the Process of Login, increased users satisfaction by 37%.
    • Built Quizz Feature to allow users solve questions and gain points, increased the number of users using the app by 12%.
    • Developed Push notification to promote buying bundles for voice and internet.
    • Fully Developed Robost App from scratch using Kotlin, Coroutines, Dagger-Hilt and clean Architecture.
    • Built new custom notification to keep users more focused, increased the success rate of receiving notification by 99%.
    • Led successful release of Projects, introduced & drove initiatives of new features. Also,reduced app crashes by 90%, and enhanced image loading and scrolling performance.
    • Integrated PayFort as a payment gateway in Core Project and Improved app stability by reducing crashes by 30%.