Jacek Grzegorczyk

Jacek Grzegorczyk

Member Since April 6, 2016
Open to Work

8,974

Total Points

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Skills & Experience

  • Spoken Languages

    • English
    • Polish
    • German

115 Achievements

  • Achievement

    Stateful Components

    React Basics (retired)

    Achieved

    Sep 7, 2016

    Stateful Components
  • Achievement

    Thinking in Components

    React Basics (retired)

    Achieved

    Sep 6, 2016

    Thinking in Components
  • Achievement

    First Steps in React

    React Basics (retired)

    Achieved

    Sep 5, 2016

    First Steps in React
  • Achievement

    Using Bootstrap Components

    Bootstrap 4 Basics (Retired)

    Achieved

    Aug 27, 2016

    Using Bootstrap Components
  • Achievement

    Responsive Layouts with the Bootstrap Grid

    Bootstrap 4 Basics (Retired)

    Achieved

    Aug 26, 2016

    Responsive Layouts with the Bootstrap Grid
  • Achievement

    Getting to Know Bootstrap 4

    Bootstrap 4 Basics (Retired)

    Achieved

    Aug 26, 2016

    Getting to Know Bootstrap 4
  • Achievement

    Advanced Selectors

    CSS Selectors

    Achieved

    Aug 26, 2016

    Advanced Selectors
  • Achievement

    Going Further with Attribute Selectors and Pseudo-Classes

    CSS Selectors

    Achieved

    Aug 24, 2016

    Going Further with Attribute Selectors and Pseudo-Classes
  • Achievement

    Selectors - Beyond the Basics

    CSS Selectors

    Achieved

    Aug 24, 2016

    Selectors - Beyond the Basics
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Aug 24, 2016

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Aug 24, 2016

    Sharing a Website
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Aug 24, 2016

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Aug 24, 2016

    Styling Web Pages and Navigation
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Aug 23, 2016

    Customizing Colors and Fonts
  • Achievement

    Finding the Data You Want

    SQL Basics

    Achieved

    Aug 23, 2016

    Finding the Data You Want
  • Achievement

    Getting Data from a Database

    SQL Basics

    Achieved

    Aug 22, 2016

    Getting Data from a Database
  • Achievement

    Data, Databases and SQL

    SQL Basics

    Achieved

    Aug 22, 2016

    Data, Databases and SQL
  • Achievement

    Say Hello to Django

    Django Basics

    Achieved

    Aug 20, 2016

    Say Hello to Django
  • Achievement

    Manipulating Schema with SQL

    Database Foundations

    Achieved

    Aug 17, 2016

    Manipulating Schema with SQL
  • Achievement

    Creating Tables and Manipulating Data with SQL

    Database Foundations

    Achieved

    Aug 17, 2016

    Creating Tables and Manipulating Data with SQL
  • Achievement

    Reading Data from Databases with SQL

    Database Foundations

    Achieved

    Aug 16, 2016

    Reading Data from Databases with SQL
  • Achievement

    Installing MySQL Server and MySQL Workbench

    Database Foundations

    Achieved

    Aug 16, 2016

    Installing MySQL Server and MySQL Workbench
  • Achievement

    Introduction to Data, Databases and SQL

    Database Foundations

    Achieved

    Aug 16, 2016

    Introduction to Data, Databases and SQL
  • Achievement

    Understanding MongoDB

    Mongo Basics

    Achieved

    Aug 11, 2016

    Understanding MongoDB
  • Achievement

    Getting Started with MongoDB

    Mongo Basics

    Achieved

    Aug 11, 2016

    Getting Started with MongoDB
  • Achievement

    Doing More with Express

    Express Basics (2015)

    Achieved

    Aug 7, 2016

    Doing More with Express
  • Achievement

    Serving Static Files in Express

    Express Basics (2015)

    Achieved

    Aug 6, 2016

    Serving Static Files in Express
  • Achievement

    Using Templates with Express

    Express Basics (2015)

    Achieved

    Aug 5, 2016

    Using Templates with Express
  • Achievement

    The Request and Response Objects in Express

    Express Basics (2015)

    Achieved

    Aug 4, 2016

    The Request and Response Objects in Express
  • Achievement

    Developing Express Apps Like a Boss

    Express Basics (2015)

    Achieved

    Aug 3, 2016

    Developing Express Apps Like a Boss
  • Achievement

    Getting Started with Express

    Express Basics (2015)

    Achieved

    Aug 2, 2016

    Getting Started with Express
  • Achievement

    Installing Programs

    Console Foundations

    Achieved

    Aug 2, 2016

    Installing Programs
  • Achievement

    Environment and Redirection

    Console Foundations

    Achieved

    Aug 1, 2016

    Environment and Redirection
  • Achievement

    Console Processes

    Console Foundations

    Achieved

    Aug 1, 2016

    Console Processes
  • Achievement

    Console Users and Permission

    Console Foundations

    Achieved

    Aug 1, 2016

    Console Users and Permission
  • Achievement

    Moving Around in the Console

    Console Foundations

    Achieved

    Aug 1, 2016

    Moving Around in the Console
  • Achievement

    Combine and Minify Assets

    Introduction to Front End Performance Optimization

    Achieved

    Jul 28, 2016

    Combine and Minify Assets
  • Achievement

    Optimize Assets

    Introduction to Front End Performance Optimization

    Achieved

    Jul 28, 2016

    Optimize Assets
  • Achievement

    Measuring Performance

    Introduction to Front End Performance Optimization

    Achieved

    Jul 28, 2016

    Measuring Performance
  • Achievement

    Choosing Options

    HTML Forms

    Achieved

    Jul 27, 2016

    Choosing Options
  • Achievement

    Organizing Forms

    HTML Forms

    Achieved

    Jul 26, 2016

    Organizing Forms
  • Achievement

    Form Basics

    HTML Forms

    Achieved

    Jul 26, 2016

    Form Basics
  • Achievement

    Workflows

    Git Basics

    Achieved

    Jul 26, 2016

    Workflows
  • Achievement

    Working With Remote Repositories

    Git Basics

    Achieved

    Jul 26, 2016

    Working With Remote Repositories
  • Achievement

    Merging

    Git Basics

    Achieved

    Jul 26, 2016

    Merging
  • Achievement

    Branches

    Git Basics

    Achieved

    Jul 26, 2016

    Branches
  • Achievement

    Getting Started With Git

    Git Basics

    Achieved

    Jul 25, 2016

    Getting Started With Git
  • Achievement

    Controllers and Scope

    AngularJS Basics (1.x)

    Achieved

    Jul 1, 2016

    Controllers and Scope
  • Achievement

    Getting Started with Angular

    AngularJS Basics (1.x)

    Achieved

    Jul 1, 2016

    Getting Started with Angular
  • Achievement

    Selecting Elements and Adding Events with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Jun 18, 2016

    Selecting Elements and Adding Events with JavaScript
  • Achievement

    JavaScript and the DOM

    Interactive Web Pages with JavaScript

    Achieved

    Jun 15, 2016

    JavaScript and the DOM
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Jun 15, 2016

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Jun 14, 2016

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Jun 11, 2016

    JavaScript Loops
  • Achievement

    Grid Layout

    CSS Layout Techniques

    Achieved

    Jun 7, 2016

    Grid Layout
  • Achievement

    Building a Layout with Flexbox

    CSS Flexbox Layout

    Achieved

    Jun 7, 2016

    Building a Layout with Flexbox
  • Achievement

    Flexbox Layout

    CSS Layout Techniques

    Achieved

    Jun 5, 2016

    Flexbox Layout
  • Achievement

    Positioning Schemes

    CSS Layout Techniques

    Achieved

    Jun 2, 2016

    Positioning Schemes
  • Achievement

    Float Layout

    CSS Layout Techniques

    Achieved

    Jun 2, 2016

    Float Layout
  • Achievement

    Flexbox Properties

    CSS Flexbox Layout

    Achieved

    Jun 1, 2016

    Flexbox Properties
  • Achievement

    Understanding Flexbox

    CSS Flexbox Layout

    Achieved

    May 30, 2016

    Understanding Flexbox
  • Achievement

    Display Modes

    CSS Layout Techniques

    Achieved

    May 30, 2016

    Display Modes
  • Achievement

    Responsive Patterns

    Responsive Layouts

    Achieved

    May 29, 2016

    Responsive Patterns
  • Achievement

    Media Queries

    Responsive Layouts

    Achieved

    May 29, 2016

    Media Queries
  • Achievement

    Responsive Theory

    Responsive Layouts

    Achieved

    May 29, 2016

    Responsive Theory
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    May 29, 2016

    CSS: Cascading Style Sheets
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    May 29, 2016

    Creating HTML Content
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    May 29, 2016

    HTML First
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    May 29, 2016

    Beginning HTML and CSS
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    May 29, 2016

    Responsive Web Design and Testing
  • Achievement

    Positioning Page Content

    CSS Layout Basics

    Achieved

    May 29, 2016

    Positioning Page Content
  • Achievement

    CSS Layout Project

    CSS Layout Basics

    Achieved

    May 29, 2016

    CSS Layout Project
  • Achievement

    Page Layout with the Float Property

    CSS Layout Basics

    Achieved

    May 25, 2016

    Page Layout with the Float Property
  • Achievement

    Controlling Layout with CSS Display Modes

    CSS Layout Basics

    Achieved

    May 25, 2016

    Controlling Layout with CSS Display Modes
  • Achievement

    Modular Media Queries

    Modular CSS with Sass

    Achieved

    May 25, 2016

    Modular Media Queries
  • Achievement

    Sass Grid System

    Modular CSS with Sass

    Achieved

    May 25, 2016

    Sass Grid System
  • Achievement

    SMACSS and Sass

    Modular CSS with Sass

    Achieved

    May 25, 2016

    SMACSS and Sass
  • Achievement

    Sass and BEM

    Modular CSS with Sass

    Achieved

    May 24, 2016

    Sass and BEM
  • Achievement

    Getting Modular with Mixins and Functions

    Modular CSS with Sass

    Achieved

    May 24, 2016

    Getting Modular with Mixins and Functions
  • Achievement

    Advanced Sass Concepts

    Sass Basics (retired)

    Achieved

    May 23, 2016

    Advanced Sass Concepts
  • Achievement

    Speeding up Workflow With Sass

    Sass Basics (retired)

    Achieved

    May 23, 2016

    Speeding up Workflow With Sass
  • Achievement

    Variables, Mixins, and Extending Selectors

    Sass Basics (retired)

    Achieved

    May 23, 2016

    Variables, Mixins, and Extending Selectors
  • Achievement

    Getting Started with Sass

    Sass Basics (retired)

    Achieved

    May 22, 2016

    Getting Started with Sass
  • Achievement

    Why Version Control Matters

    Git Basics

    Achieved

    May 21, 2016

    Why Version Control Matters
  • Achievement

    Planning for Performance

    Introduction to Front End Performance Optimization

    Achieved

    May 21, 2016

    Planning for Performance
  • Achievement

    Concepts on Advanced Functions

    Advanced Sass

    Achieved

    May 20, 2016

    Concepts on Advanced Functions
  • Achievement

    Advanced Variables, Mixins, Functions, and Placeholders

    Advanced Sass

    Achieved

    May 20, 2016

    Advanced Variables, Mixins, Functions, and Placeholders
  • Achievement

    Getting Started with Advanced Sass

    Advanced Sass

    Achieved

    May 19, 2016

    Getting Started with Advanced Sass
  • Achievement

    Debugging, Best Practices, and Production

    CSS to Sass

    Achieved

    May 19, 2016

    Debugging, Best Practices, and Production
  • Achievement

    Refactoring with Sass

    CSS to Sass

    Achieved

    May 18, 2016

    Refactoring with Sass
  • Achievement

    Installing Sass and Setting up the Project

    CSS to Sass

    Achieved

    May 18, 2016

    Installing Sass and Setting up the Project
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    May 15, 2016

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    May 15, 2016

    JavaScript Conditional Statements
  • Achievement

    Getting Started with CSS Layout

    CSS Layout Basics

    Achieved

    May 14, 2016

    Getting Started with CSS Layout
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    May 13, 2016

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    May 13, 2016

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    May 12, 2016

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    May 12, 2016

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    May 12, 2016

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    May 11, 2016

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    May 11, 2016

    Getting Started with CSS
  • Achievement

    Introduction to Node.js

    Node.js Basics (2014)

    Achieved

    May 11, 2016

    Introduction to Node.js
  • Achievement

    Constructor Functions & Prototypes

    Object-Oriented JavaScript (2015)

    Achieved

    Apr 13, 2016

    Constructor Functions & Prototypes
  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Apr 13, 2016

    Introduction to Methods
  • Achievement

    Introduction

    HTML

    Achieved

    Apr 12, 2016

    Introduction
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Apr 12, 2016

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Apr 12, 2016

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Apr 12, 2016

    Introducing JavaScript
  • Achievement

    Creating a Mobile Drop Down Menu

    jQuery Basics (2014)

    Achieved

    Apr 9, 2016

    Creating a Mobile Drop Down Menu
  • Achievement

    Creating a Simple Lightbox

    jQuery Basics (2014)

    Achieved

    Apr 8, 2016

    Creating a Simple Lightbox
  • Achievement

    Creating a Spoiler Revealer

    jQuery Basics (2014)

    Achieved

    Apr 8, 2016

    Creating a Spoiler Revealer
  • Achievement

    Introduction to jQuery

    jQuery Basics (2014)

    Achieved

    Apr 8, 2016

    Introduction to jQuery
  • Achievement

    Programming AJAX

    AJAX Basics (retiring)

    Achieved

    Apr 7, 2016

    Programming AJAX
  • Achievement

    AJAX Concepts

    AJAX Basics (retiring)

    Achieved

    Apr 7, 2016

    AJAX Concepts
  • Achievement

    Newbie

    Achieved

    Apr 6, 2016

    Newbie