Ivan Kušt

An application for savings and investment in the UK that I've developed in a team with two Android developers. As the Android lead, I've worked closely with other developers and mentored them. I've also worked with designers to ensure smooth material design with Android best practices in mind.

Some of the implementation challenges included:
· Implementing the functionality for taking pictures of users ID during registration process—storing and passing the picture to the back-end in a high-enough quality for verification proved to be a challenge on some phones.
· Implementing a simple physics engine for Android views to enable interactive animations on the main screen of the app.
· Dynamic UI forms that are generated depending on the response from the RESTful API.

To ensure maximum testability, applications were implemented using MVP architecture in conjunction with dependency injection (Dagger 2). Unit tests were written using the Robolectric test framework in combination with MockWebServer for mocking the networking layer.

Technologies: Android Studio IDE, Android SDK, Java

I developed an Android app for booking online bus tickets from various bus companies. I worked closely with the back-end developers on a RESTful API specification and payment integration using Braintree SDK.

Technologies: Android Studio IDE, Android SDK, Java, Braintree SDK

I developed and maintained mobile banking applications with a focus on data security, both alone and as a part of a team. I’ve integrated time and event-based mobile tokens (Asseco, Entrust), worked with SOAP-based web services and RESTful APIs, and developed core libraries with shared code that were used across applications.

To ensure maximum testability, applications were implemented using MVP architecture in conjunction with dependency injection (Dagger and Dagger 2). Unit tests were written using the Robolectric test framework in combination with MockWebServer for mocking the networking layer. Finally, a continuous integration environment was set up using Jenkins and Circle CI with both GItHub and Bitbucket repositories.

Technologies: Android Studio IDE, Android SDK, Java

I’ve implemented a native wrapper for an HTML5 banking application using Apache Cordova. Cordova was configured to work with an HTML5 application from a remote endpoint instead of using a bundled HTML5 application. I also wrote a couple of Cordova Android plugins.

Technologies: Android Studio IDE, Android SDK, Apache Cordova, Java

I've developed a few 2D Android games and a simple physics engine that handles collisions and gravity.

Technologies: Android Studio IDE, Android SDK, Java

I wrote the Android tutorials on Raywenderlich.com.

Here are some blog posts that I've written.

An example project that demonstrates how to pin certificates with (now obsolete) Apache HTTP client that is shipped with Android and a Retrofit/OkHttp client.

A list adapter "injection" library which uses an annotation processing to generate code that implements a ListView Adapter and assigns it to one of your ListViews.

An example of two Android applications signed with the same KeyStore and using the same shared user ID.