Amar Idrizovic, Apps Developer in Sarajevo, Federation of Bosnia and Herzegovina, Bosnia and Herzegovina
Amar Idrizovic

Apps Developer in Sarajevo, Federation of Bosnia and Herzegovina, Bosnia and Herzegovina

Member since May 28, 2015
Amar has been a mathematician for as long as he can remember, looking for patterns, problems to solve, and challenges to meet. For him, computer science is just applied math. He's been writing code for more than a decade now, mostly games and purpose-specific apps, some of which are used by more than one million users. As the Toptal Community Leader for Sarajevo, he's fluent in English and loves working in teams of all shapes and sizes.
Amar is now available for hire




Sarajevo, Federation of Bosnia and Herzegovina, Bosnia and Herzegovina



Preferred Environment

Terminal, Android

The most amazing...

...project I've worked on was Reddit's Android app with 50M+ downloads.


  • Senior Android Developer

    2020 - 2021
    • Worked with a team of Android developers on a social app that has 50M+ downloads.
    • Continued on a codebase with 1M+ lines of code. Reviewing other engineer's code and owning the module for Subreddit Moderators.
    • Managed and planned my own tasks, breaking designed features into smaller steps.
    • Delivered a feature that would help a moderator launch and make their subreddit more popular faster.
    • Built an animated counter that would be used throughout the app to show the liveliness of a social app.
    Technologies: Android, Agile, Product Management
  • Lead Android Developer

    2018 - 2020
    • Built the MVP app that serves as a web page wrapper and includes Android features such as camera, biometrics and data storage.
    • Build a fully native Android app from the ground up for our Android clients.
    • Designed and developed modern app architecture starring Kotlin coroutines for robustness and workload parallelization and Koin for dependency injection.
    • Built a separate data layer using Room and Paging library for offline data storage and effective loading and displaying of data.
    • Collaborated with the design team to provide the most authentic Android experience without straying from our company's designs.
    Technologies: Kotlin, Android
  • Senior Android Developer

    2017 - 2018
    Clarity Money (Goldman Sachs)
    • Took over continuing work on the existing Android app that was later acquired by Marcus via Goldman Sachs.
    • Upgraded and updated an old, rigid codebase to a modern, flexible, and scalable architecture.
    • Developed a Facebook-like feed for a better and more fun way of keeping track of personal expenses.
    • Worked with Kotlin, including writing new app components in it.
    • Featured by Google Play as one of the Best of 2017.
    Technologies: Kotlin, Java, Android
  • Senior Android Developer

    2016 - 2016
    • Contributed to continuing work on the existing Android apps.
    • Integrated various different ad services such as offer walls and reward videos.
    • Worked on Android ROM level.
    • Redid the native Android lock screen, adding personalized ads for maximum coverage.
    • Took care of proper ad caching so it uses only wifi.
    Technologies: Java, Android
  • Lead Android Developer

    2016 - 2016
    FlightCar (Mercedes Benz)
    • Created a whole new client app that was later acquired by Mercedes Benz.
    • Designed and manufactured a solid and stable app back-end architecture from the ground up.
    • Took care of proper caching so the app is available offline as well.
    • Integrated different social account logins with user profiles, photos, and a personal touch.
    • Made an error-proof payment system.
    Technologies: Java, Android
  • Android Developer

    2015 - 2016
    American Southern
    • Contributed to continuing work on the existing Android app.
    • Fixed a lot of UI bugs.
    • Added screens about Yelp places.
    • Rewrote the API services.
    • Created a landing web page with URL scheme.
    Technologies: Java, Android
  • Android Developer

    2015 - 2016
    Prize Wheel
    • Created a spin-the-wheel Android game.
    • Added randomness and a natural feel to the spinning mechanism.
    • Integrated eight different ad services for maximum ad coverage.
    • Integrated Twitter API.
    • Created a RESTful service to interact with the back end.
    Technologies: Java, Android
  • Android Developer

    2015 - 2015
    • Worked on a smart home mobile app for the biggest TSP and ISP in Bosnia and Herzegovina.
    • Utilized IoT technology and devices as well as Z-Wave technology and devices.
    • Integrated with Raspberry Pi.
    • Contributed to the development of a business CMS for the national bank.
    Technologies: Internet of Things (IoT), C#, ASP.NET MVC, Java, Android
  • Android Developer

    2015 - 2015
    • Built and maintained an Android app for the world’s first smart locator and phone for kids.
    • Developed apps for Android Glasses used by NASA astronauts in space.
    • Contributed to Android platform development.
    • Worked on the Android open source project and custom build systems.
    • Provided daily contact, reports, and collaborative effort to clients.
    Technologies: Java, Android
  • Android Developer

    2010 - 2014
    • Built form apps in Eclipse with the Android plugin as well as some of my own games. My first project was with Android Gingerbread, API 9.
    Technologies: Android


  • Osterhout Design Group

    Cutting-edge AR smart glasses used in military and enterprise customers, such as NASA and Porsche. I was working on designing and making native Android applications usable for the same e.g., contacts, phone calls etc.

  • Smart Home Android App

    Android app to monitor and control smart devices inside your home. It features a cool custom made circular menu with levels that keeps all devices at a touch distance. Works on top of IoT and Z-Wave technology.

  • Coffee Time

    A tiny Android app that makes getting together for a coffee or chat very simple and fast. It won us first place at the First Startup Weekend in Mostar:


  • Languages

    Java, Kotlin, XML, JavaScript, HTML, C#
  • Frameworks

    Android SDK, Rx, .NET, ASP.NET MVC
  • Libraries/APIs

    Google API, Fabric, Facebook API, Retrofit, Volley Android Library, Twitter API, Otto, Android API
  • Tools

    Git, Android Studio, Terminal
  • Paradigms

    Reactive Programming, Clean Code, Agile Software Development, Agile
  • Platforms

    Android, Firebase, Linux
  • Storage

    Realm, Cloud Firestore, RoomDB, MySQL, Databases
  • Other

    Apps, Mathematics, Coroutines, Data Architecture, Code Architecture, Code Review, EventBus, Internet of Things (IoT), Product Management


  • Bachelor's Degree in Mathematics
    2010 - 2014
    Methodist University - Fayetteville, NC
  • Bachelor's Degree in Computer Science
    2010 - 2014
    Methodist University - Fayetteville, NC
  • International Baccalaureate Diploma in high school
    2008 - 2010
    United World College in Mostar - Mostar, Bosnia and Herzegovina

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