Tomasz Czura, Android Developer in Kraków, Poland
Tomasz Czura

Android Developer in Kraków, Poland

Member since February 6, 2016
Tomasz is an Android developer who specializes in creating user-friendly and useful applications with the newest technologies. He enjoys experimenting with different languages and technologies, extending his skill set beyond Android to tasks leveraging React or iOS. Tomasz makes it a personal goal to ensure the client is fully satisfied, and often likens the process of software development to writing a good, interesting novel.
Tomasz is now available for hire


  • Welltok
    Backbone.js, Python, JavaScript, React Native
  • Jenzy
    Kotlin, Android, JavaScript, React Native
  • CaronaeSystems
    iOS, Android, React Native



Kraków, Poland



Preferred Environment

RubyMine, Git, Android Studio

The most amazing...

...thing I have helped develop is an entertainment system for hotels, where I worked on the Android app, hotel systems integration, and server-side infrastructure.


  • Software Developer

    2019 - PRESENT
    • Implemented new features for a React Native app, a Backbone app, and a Django web app.
    Technologies: Backbone.js, Python, JavaScript, React Native
  • React Native Developer

    2019 - 2019
    • Implemented native Android camera and sensor modules.
    • Configured AppCenter builds.
    • Fixed bugs related to Android platform.
    • Prepared the app to work on Android phones.
    Technologies: Kotlin, Android, JavaScript, React Native
  • React Native Developer

    2019 - 2019
    • Implemented designed screens, animations, and mobile app flow.
    Technologies: iOS, Android, React Native
  • Android Developer, Front-end Developer

    2017 - 2019
    • Refactored the Android app to make it faster and more reliable.
    • Designed the Android app layout and new features.
    • Created new website layout and features.
    • Migrated the website to server-side rendering.
    • Created new CMS features.
    Technologies: Firebase, CSS, HTML, JavaScript, React, Java, Android
  • Lead Developer

    2016 - 2017
    • Created a SDK for the Android platform to integrate with back-end infrastructure to open BLE door locks.
    • Developed an Android app using a SDK for the client.
    • Constructed a console for admins and developers in React.
    • Developed firmware code for BLE hardware.
    Technologies: RxJava, React, iOS, Fabric, Firebase, Bluetooth LE, C, Kotlin, Android
  • Software Engineer

    2013 - 2016
    • Customized the Android platform.
    • Built a custom Android image.
    • Created a TV app for Android.
    • Created several hotel guest Android apps, including apps for room service, checking your bill, reading messages, and making appointments.
    • Created an Android flights schedule app.
    • Created a hotels systems integration app in C# with integration to FIAS, Opera, SIHOT, etc.
    • Created a music forum information app in .NET with map and digital signage.
    • Created an Android digital signage app.
    • Took part in creating a server-side app in Ruby on Rails.
    Technologies: Ruby on Rails (RoR), Ruby, .NET, C#, Android, Java
  • Software Engineer

    2012 - 2013
    Velia Systems
    • Created a multi-platform app for restaurants and their clients.
    • Created a Windows Phone and iOS app that displays interesting articles based on user preferences.
    • Created an Android SDK for in-app advertising.
    Technologies: Objective-C, iOS, C#, Corona SDK, Windows Phone, Android, Java


  • Android App

    Spott application is an Android version of the website. Users can be inspired by their favorite celebrities, actors, characters, etc., and buy things they wear or have. The app also provides the possibility to live sync with TV shows, movies, and series to view articles that appear in the current scene and what they can buy.

  • HeyCar

    This is my own app which helps drivers communicate with and rate other drivers using just a license plate number. I created the Android app using Kotlin, RxJava2, Dagger, Firebase, and MVP.

    I also created an API for this app in Ruby on Rails 5 and established an environment on AWS.

  • Wellpass

    This is a mobile app built in React Native for Android and iOS. Patients can send and receive messages to and from doctors to get hints about their health and lifestyle.


    Spott is a place where you can inspire yourself with your favorite celebrities, actors, characters, etc. You can check their fashion, accessories, and other things they like. You can then go shopping to buy things you like.

    I am a part of the team that creates the page and corresponding CMS, adding new features and constantly improving the layout.

  • Rugby World Cup 2017

    This is an Android and iOS app (both native) helping people stay up to date with RLWC2017 actions. The main screen is a mobile web page. The app is optimized to display the web page and contains some native views (subscribing to teams, selecting notifications, handling notifications).

  • SmartphoneKey

    This project was developed with a group of friends for a German company. The main goal of the project was to create a system for opening door locks produced by the company via Bluetooth Low Energy. I was responsible for:

    - Creating an SDK for Android developers who wish to integrate their own door locks.
    - Developing the Android app SmartphoneKey. This application allows users to create an account, receive created reservations (also via push) and messages, and open the door locks through the SDK.
    - Building an administration console in React.
    - Designing BLE firmware in C on Nordic semiconductor hardware.
    - Developing a .NET application responsible for communication between a hotel management system and our server.

  • BonMed

    This service allows people to visit with different doctors through the web, using WebRTC technology. The patient, seeking advice from a specialist, can make an appointment to video chat with the doctor at a date that works for both parties. The doctor can prescribe medicines or give any recommendations to the patient, as well as check to see if they were fulfilled.

  • Uprising '44

    An Android app created for Warsaw Rising Museum. The app integrates with beacons, which were to be placed in the museum, and shows text, video, and image information about Uprising 44. The app references Norman Davies' book "Uprising 44" and contains interview videos with the author. The app wasn't published, but it was a promising piece of software.

  • BonTV

    Android app similar to YouTube, in which you can see videos from (I also developed the site). The app connects with ChromeCast, allows you to create playlists, add videos to favorites, and more.

  • iLumio

    iLumio is an entertainment system designed for hotels. I am a member of the team that created the whole system. I worked on the Android app, hotel system integration, and server side.

  • FiveS

    This Android app allows auditors to control five standards of quality in factories and companies. The auditor can rate each quality factor, take photos, and write notes. When the audit is finished, all information is presented on charts and can be exported to CSV or PDF file formats.

    The app is not available for download - the customer distributes it on their own.

  • MonopolyGame

    This Android app was created with my colleague for a bachelor's degree. It's a game very similar to Monopoly. The game was designed to allow players to play together, each one of his own phone via Bluetooth. Players can also play with a computer player. There is an implemented artificial intelligence mechanism that uses fuzzy logic. The app also provides local game-saving status.

  • Discover the Benefits of Android Clean Architecture (Publication)
    It’s easy to get entangled in spaghetti code, fuzzy responsibilities, and opaque architecture. It is just as easy to write crisp, clear code that is just as easy to write, maintain, and update with a little forethought. Join Toptal Android Developer Tomasz Czura as he guides you through the process and the reasoning behind creating clean architecture on Android.
  • Introduction to Kotlin: Android Programming for Humans (Publication)
    Java has been a dominant programming language for ages, but modern times call for modern languages. Meet Kotlin, a modern, clear, and expressive programming language powered by the same virtual machine technology that powers Java. In this article, Toptal Freelance Software Engineer Tomasz Czura takes us for a spin through the world of Kotlin and shows us how it can be used to make an Android application with an elegant architecture without compromising the very qualities of the code that Kotlin aims to provide.


  • Languages

    CSS3, SCSS, ECMAScript (ES6), JavaScript, Java, Kotlin, HTML, CSS, HTML5, TypeScript, C#, Objective-C, Ruby, C, Swift 4, Swift, GraphQL, Python
  • Frameworks

    Redux, Android SDK, React Native, Swagger, Dagger, Corona SDK, .NET, Ruby on Rails 4, iOS SDK, Ruby on Rails 5, Ruby on Rails (RoR)
  • Libraries/APIs

    Redux Form, React Redux, Fabric, Butterknife, React, Joda-Time, Otto, REST APIs, Android API, Retrofit, Android Support Library, TensorFlow, Firebase Android SDK, ActiveAndroid, RxJava, Backbone.js, iOS API, WebRTC, RxJava 2
  • Tools

    Android Studio, Jira, IntelliJ IDEA, Bitbucket, RubyMine, Git, GitHub, Firebase Cloud Messaging (FCM), Android NDK, Microsoft Visual Studio, Gradle, SQLiteManager
  • Paradigms

    RESTful Development, Mobile Development, Model View Presenter (MVP), REST, Agile Software Development, Mobile Design
  • Platforms

    Android, Mobile, Firebase, Windows Phone, Bluetooth LE, iOS, Android TV
  • Storage

    JSON, Realm Database, Realm, SQLite, PostgreSQL
  • Other

    Mobile App Development, Full-stack, Google Material Design, Apps, APIs, Front-end, Bluetooth, User Interface (UI), User Experience (UX), Web Development


  • Master's Degree in Computer Science
    2013 - 2015
    University of Science and Technology - Krakow, Poland
  • Bachelor's Degree in Information Technology
    2009 - 2013
    University of Technology - Krakow, Poland

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