Ban is available for hire
Hire BanBan Markovic
Verified Expert in Engineering
Android Developer
Podgorica, Podgorica Municipality, Montenegro
Toptal member since August 27, 2021
Bio
Ban is a senior Android engineer with seven years of experience specializing in Android. He is passionate about bringing employers' ideas to life as reliable, high-quality apps using Kotlin and Java. He enjoys leading projects, mentoring team members, and fostering a collaborative environment. He also shares his knowledge through a blog, where his posts on Android development have accumulated over 90,000 reads.
Portfolio
Hyper AR
Android, Kotlin, Google Maps, ARCore, KOIN, Canvas, Gradle, IMDF
ProfitApp
Android, Kotlin, Android Jetpack, Dagger 2, Model View ViewModel (MVVM), JSON...
Infinum
Kotlin, Java, Git, Scrum, Android SDK, Android, Model View ViewModel (MVVM)...
Experience
- Android - 7 years
- Kotlin - 6 years
- Model View ViewModel (MVVM) - 4 years
- Android Jetpack - 4 years
- Java - 3 years
- Model View Intent (MVI) - 3 years
- Relational Databases - 3 years
- Jetpack Compose - 2 years
Availability
Full-time
Preferred Environment
Android Studio, Kotlin, Kotlin Multiplatform, Jetpack Compose, Android
The most amazing...
...project I've worked on is a groundbreaking technology of the Android indoor location SDK, without any additional hardware, using just an Android device.
Work Experience
Senior Android Engineer
2022 - PRESENT
Hyper AR
- Helped prepare the Android SDK for a production-ready release.
- Led the development of an Android demo app that allows potential clients to experience indoor location services in their venues, using Kotlin, Jetpack Compose, Coroutines, Hilt, Retrofit, and MVI architecture.
- Implemented user indoor orientation features leveraging ARCore and the rotation vector sensor.
- Developed features for the indoor location Android SDK, including route finding, map rendering, and location estimates based on WiFi scans and sensor data.
Technologies: Android, Kotlin, Google Maps, ARCore, KOIN, Canvas, Gradle, IMDF
Senior Android Engineer
2022 - 2023
ProfitApp
- Led the development of a startup Android app with over 100,000 downloads, allowing users to earn cashback by shopping at their favorite stores using a QR code.
- Collaborated in a cross-functional team to design new features and introduce innovative ideas.
- Built with Kotlin, Coroutines, Jetpack Compose, Retrofit, Google Maps API, and MVI architecture.
Technologies: Android, Kotlin, Android Jetpack, Dagger 2, Model View ViewModel (MVVM), JSON, Scrum, Google Maps, Git, Android Studio, Model View Intent (MVI), Jetpack Compose
Android Engineer
2020 - 2022
Infinum
- Led the development of an Android app with over 50,000 downloads for a Dutch museum, enabling users to browse museum content and listen to recorded audio tours. Built with Kotlin, Coroutines, Retrofit, Services, and MVVM architecture.
- Enhanced theming for a multi-module Android app with over 5 million downloads, designed for communication with smart appliances like air cookers, air fryers, and blenders, using Kotlin and XML Views.
- Developed the UI for an Android app with over 100,000 downloads that allows users to discover kids' toys by scanning items from a Dutch toy catalog. Built with Kotlin, LiveData, Retrot, XML Views, and MVVM architecture.
Technologies: Kotlin, Java, Git, Scrum, Android SDK, Android, Model View ViewModel (MVVM), Model View Presenter (MVP), JSON, Google Maps, Android Studio, Model View Intent (MVI), RxJava
Android Developer
2018 - 2020
Logate
- Oversaw the transition from Java to Kotlin for a team of three Android developers.
- Developed and published a parking information and payment Android app for citizens of Montenegro, using Kotlin, Dagger, Coroutines, LiveData, Retrofit, Google Maps API, and MVVM architecture.
- Developed and released an updated version of a mobile banking Android app for 10,000 DAUs, utilizing Java, Dagger, RxJava, Retrot, and MVP architecture.
Technologies: Android SDK, Kotlin, Java, Git, Scrum, Android, RxJava 2, Model View ViewModel (MVVM), Model View Presenter (MVP), JSON, Google Maps, Android Studio, RxJava
Billing System Engineer
2016 - 2018
Ericsson
- Developed Java middleware for communication between Oracle database and SAPC module to activate free GPRS resources for MTEL customers.
- Maintained MTEL's billing system, Comverse, and roaming module.
- Wrote and optimized SQL queries on Oracle and Microsoft databases.
- Developed interfaces and web pages in C# for internal employees of MTEL.
Technologies: Java, Microsoft SQL Server, Oracle SQL, JSON, Relational Databases
Experience
Dutch Domestic Appliances
The mobile app is used for communication with domestic appliances and serves users as the social network for recipes for a Dutch domestic appliances manufacturer. Users also have access to the recipes provided by the manufacturer to get the most out of their appliances.
Slovenian Virtual Pet Mobile Game
One of the oldest and most popular games that represent virtual pets for kids and the whole family. Players can take care of their pet every day, making sure it gets enough food and sleep, taking it to the toilet, and keeping it happy, smiling, and laughing.
Dutch Museum Mobile App
Developed an Android mobile app for Dutch museums that enables browsing the museum's content and listening to the recorded audio tours. It also supports the navigation feature that enables users to check the floor and rooms' layout and content.
Dutch Virtual Toy Book for Kids
Developed an Android application that helps kids discover much more about their favorite toys. By scanning the toys from this book from one of the biggest webshops in the Netherlands, kids can discover everything related to that specific toy by watching videos, pictures, and facts related to it.
Mobile Banking App
Developed a mobile banking application that enables users to access their bank accounts, make all types of payments, view transaction history, locate the nearest bank’s branch office, and many other options anytime and anywhere using their smartphone.
Mobile App for Parking Availability in Montenegro
Parking Service Montenegro is a contemporary solution that supports and automates the process of managing parking policy in a city or area. It consists of billing various parking cards like SMS, prepaid, kiosk cards, and academic cards. The Android application also supports events and sends notifications to users using triggers.
Education
2013 - 2017
Bachelor's Degree in Computer Science
University of Montenegro - Podgorica, Montenegro
Skills
Libraries/APIs
Google Maps, RxJava 2, RxJava
Tools
Android Studio, Android Jetpack, Git, Canvas, Gradle
Languages
Java, Kotlin, HTML, CSS, JavaScript
Frameworks
Android SDK, Dagger 2, Flutter, React Native, KOIN
Paradigms
Scrum, Model View ViewModel (MVVM), Model View Presenter (MVP), Model View Intent (MVI)
Platforms
Android, ARCore
Storage
JSON, Relational Databases, Microsoft SQL Server, Oracle SQL
Other
Jetpack Compose, Algorithms, Coroutines, IMDF, Kotlin Multiplatform
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