Marek Zakrzewski

Marek Zakrzewski

Dublin, Ireland
Open to Work

2,920

Total Points

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Skills & Experience

  • Job Title

    Quality Evaluator

  • Spoken Languages

    • English
    • Polish

37 Achievements

  • Achievement

    Time Complexity

    Introduction to Algorithms

    Achieved

    Jun 12, 2019

    Time Complexity
  • Achievement

    Playing a Counting Game

    Introduction to Algorithms

    Achieved

    Jun 11, 2019

    Playing a Counting Game
  • Achievement

    Hello Kotlin!

    Kotlin for Java Developers

    Achieved

    May 11, 2019

    Hello Kotlin!
  • Achievement

    The Project

    Android Activity Lifecycle

    Achieved

    May 11, 2019

    The Project
  • Achievement

    Introducing SharedPreferences

    Android Activity Lifecycle

    Achieved

    May 5, 2019

    Introducing SharedPreferences
  • Achievement

    The Activity Lifecycle

    Android Activity Lifecycle

    Achieved

    May 5, 2019

    The Activity Lifecycle
  • Achievement

    Hooking Up the Model to the View

    Build a Weather App

    Achieved

    Apr 17, 2019

    Hooking Up the Model to the View
  • Achievement

    Exploring the Java Collections Framework

    Java Data Structures

    Achieved

    Apr 16, 2019

    Exploring the Java Collections Framework
  • Achievement

    Building the Weather UI

    Build a Weather App

    Achieved

    Apr 13, 2019

    Building the Weather UI
  • Achievement

    Working with JSON

    Build a Weather App

    Achieved

    Apr 12, 2019

    Working with JSON
  • Achievement

    Concurrency and Error Handling

    Build a Weather App

    Achieved

    Apr 10, 2019

    Concurrency and Error Handling
  • Achievement

    Networking

    Build a Weather App

    Achieved

    Apr 9, 2019

    Networking
  • Achievement

    Exploring an API

    Build a Weather App

    Achieved

    Apr 9, 2019

    Exploring an API
  • Achievement

    Organizing Data

    Java Data Structures

    Achieved

    Apr 9, 2019

    Organizing Data
  • Achievement

    The Rest of the Story

    Build an Interactive Story App

    Achieved

    Apr 4, 2019

    The Rest of the Story
  • Achievement

    Finishing the User Interface

    Build an Interactive Story App

    Achieved

    Apr 4, 2019

    Finishing the User Interface
  • Achievement

    The Model-View-Presenter Pattern

    Build an Interactive Story App

    Achieved

    Apr 4, 2019

    The Model-View-Presenter Pattern
  • Achievement

    Intents and Multiple Activities

    Build an Interactive Story App

    Achieved

    Apr 4, 2019

    Intents and Multiple Activities
  • Achievement

    Tuning the User Interface

    Build an Interactive Story App

    Achieved

    Apr 4, 2019

    Tuning the User Interface
  • Achievement

    User Input in Android

    Build an Interactive Story App

    Achieved

    Apr 4, 2019

    User Input in Android
  • Achievement

    Testing and Debugging

    Build a Simple Android App with Java

    Achieved

    Apr 3, 2019

    Testing and Debugging
  • Achievement

    Improving Our Code

    Build a Simple Android App with Java

    Achieved

    Apr 3, 2019

    Improving Our Code
  • Achievement

    Basic Android Programming

    Build a Simple Android App with Java

    Achieved

    Apr 3, 2019

    Basic Android Programming
  • Achievement

    Getting There

    Java Data Structures

    Achieved

    Apr 3, 2019

    Getting There
  • Achievement

    Creating the Screen Layout

    Build a Simple Android App with Java

    Achieved

    Apr 2, 2019

    Creating the Screen Layout
  • Achievement

    Getting Started with Android

    Build a Simple Android App with Java

    Achieved

    Apr 2, 2019

    Getting Started with Android
  • Achievement

    Gotchas and Wins

    Java Arrays

    Achieved

    Apr 2, 2019

    Gotchas and Wins
  • Achievement

    Iteration

    Java Arrays

    Achieved

    Apr 2, 2019

    Iteration
  • Achievement

    Creation

    Java Arrays

    Achieved

    Apr 2, 2019

    Creation
  • Achievement

    Delivering the MVP

    Java Objects

    Achieved

    Apr 1, 2019

    Delivering the MVP
  • Achievement

    Creating the MVP

    Java Objects

    Achieved

    Mar 31, 2019

    Creating the MVP
  • Achievement

    Harnessing the Power of Objects

    Java Objects

    Achieved

    Mar 28, 2019

    Harnessing the Power of Objects
  • Achievement

    Meet Objects

    Java Objects

    Achieved

    Mar 26, 2019

    Meet Objects
  • Achievement

    Perfecting the Prototype

    Java Basics

    Achieved

    Mar 26, 2019

    Perfecting the Prototype
  • Achievement

    Using your New Tools

    Java Basics

    Achieved

    Mar 25, 2019

    Using your New Tools
  • Achievement

    Getting Started with Java

    Java Basics

    Achieved

    Mar 25, 2019

    Getting Started with Java
  • Achievement

    Newbie

    Achieved

    Jul 18, 2017

    Newbie