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Malt Strategy
Abu BakerAB

Abu Baker

Senior Mobile App & Full Stack Developer & AI Eng

€450/day
Frankfurt am Main, DE
8-15 years
Kotlin
React.js
React Native
Flutter
KMP

Average response time: 1 hour

About Abu

I am a Senior Mobile App Developer and Full Stack Engineer with 10+ years of experience building scalable, high-performance applications. I specialize in Android (Kotlin, Jetpack Compose), backend systems, and AI integration delivering production-ready solutions that solve complex problems and scale efficiently.
Digital and IT Services
Software Publishing

  • English

    Native or bilingual

  • German

    Conversational

Can work on-site
Frankfurt am Main (up to 50km)

Experience

  • CHECK24 Vergleichsportal GmbH
    Senior Software Engineer – Android
    DIGITAL AND IT
    April 2021 - Today (5 years and 3 months)
    Frankfurt, Germany
    My key duties in CHECK24 are:
    ● Led architecture and development of scalable Android applications using Jetpack Compose, improving UI performance and maintainability.
    ● Drove migration from XML to Jetpack Compose, introducing reusable components within a shared SDK across teams.
    ● Built and integrated CI/CD pipelines (Jenkins) with automated testing (Espresso, JUnit), reducing release cycles by ~70%.
    ● Owned end-to-end release process (alpha → production), ensuring smooth delivery across cross-functional teams.
    ● Designed and developed a shared product library/SDK, enabling reuse and faster feature delivery across multiple applications.
    Java Jetpack Compose Kotlin JavaScript Typescript
  • Mobile App Test Automation Engineer
    Software Engineer - Working Student
    AUTOMOBILE
    March 2020 - April 2021 (1 year and 1 month)
    Frankfurt, Germany
    My key duties in Bosch eBike | Digital are:
    ● Explored and contributed to the test automation framework.
    ● Managed and maintained Jira workflows and boards, supporting Agile delivery processes.
    ● Conducted research and evaluation of Jira plugins to streamline workflows and unify multiple projects.
    ● Configured the Jenkins server for automated testing.
    ● Developed Python scripts for automated testing in the CI/CD pipeline.
    ● Executed functional and acceptance tests for Android and iOS eBike applications.
    ● Managed alpha/beta and production releases.
    Python CI/CD Robot Framework Java Jenkins
  • STARZ PLAY
    Senior Android/Android TV Engineer
    ENTERTAINMENT AND LEISURE
    July 2018 - September 2019 (1 year and 2 months)
    Dubai, United Arab Emirates
    Contributed to a large-scale OTT streaming platform with tens of millions of global installations and over 2.5 million paying subscribers, operating in a highly competitive market alongside global providers such as Netflix and Amazon Prime.

    • Developed high-performance streaming applications for mobile, tablet, and Android TV platforms, supporting large user bases and real-time content delivery
    • Implemented secure video streaming using DRM (Digital Rights Management) to protect licensed premium content from unauthorized access
    • Integrated adaptive bitrate streaming (DASH & HLS) using ExoPlayer to ensure smooth playback across varying network conditions
    • Worked within a modular architecture to improve scalability and accelerate feature development
    • Led the migration from Java (MVP) to Kotlin (MVVM), modernizing the codebase and improving maintainability and testability
    • Developed internal SDKs/libraries reused across mobile and Android TV platforms, reducing duplication and improving development efficiency
    • Ensured Google Play compliance and adherence to platform-specific security standards, including content protection requirements
    • Optimized application performance for low bandwidth and unstable network conditions while maintaining responsiveness and playback stability
    • Integrated analytics tools (Google Analytics & Firebase) to track user behavior and support data-driven product decisions
    • Collaborated within Agile (Scrum) teams using Jira, Confluence, and Bitbucket to ensure smooth cross-team coordination
    Java Kotlin XML Android Android TV
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Education

  • Master in Global Software Development
    Hochschule Fulda
    2021
    Master in Global Software Development
  • Bachelor of Computer Science
    Bahauddin Zakariya University
    2014
    Bachelor of Computer Science

Skill set

Android Development
Kotlin
Jetpack Compose
Mobile Application Development
Android SDK
Kotlin Coroutines
Kotlin Multiplatform (KMP)
Github Actions
Github Copilot
Kotlin Multiplatform
CI/CD
Test Automation
Firebase

Categories