🤑 Join the Treehouse affiliate program and earn 25% commission!

Join our Live Career-Building Workshop: Launch Your Tech-Adjacent Career! ⭐ Register here!

🌟 Dreaming of a bright future? 🎓 Ask about the Treehouse Scholarship program! 🚀

Curious which AI tools Treehouse developers love? ⚙️ Check them out!

🫡 Treehouse for Military offers discounts to Veterans, service members and their families!

Constantine Antonakos

New York

Open to Work

9,741

Total Points

•
1,337

CSS

1337 pts
Achievements

0 pts
Forum
•
1,176

Ruby

1176 pts
Achievements

0 pts
Forum
•
969

Android

966 pts
Achievements

3 pts
Forum
•
593

HTML

593 pts
Achievements

0 pts
Forum
•
281

JavaScript

273 pts
Achievements

8 pts
Forum
•
177

Development Tools

177 pts
Achievements

0 pts
Forum
•
154

PHP

154 pts
Achievements

0 pts
Forum
•
45

Python

45 pts
Achievements

0 pts
Forum
•
23

Java

23 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

Skills & Experience

Spoken Languages
- Greek
- English

114 Achievements

Achievement
AngularJS MVC Frameworks

AngularJS

Achieved
Dec 5, 2014
Achievement
Getting Started with Xcode

Build a Simple iPhone App with Swift

Achieved
Dec 3, 2014
Achievement
Collections

Swift Basics (retired)

Achieved
Sep 19, 2014
Achievement
Operators

Swift Basics (retired)

Achieved
Sep 19, 2014
Achievement
Types

Swift Basics (retired)

Achieved
Sep 19, 2014
Achievement
Variables and Constants

Swift Basics (retired)

Achieved
Sep 19, 2014
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
Apr 9, 2014
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
Apr 9, 2014
Achievement
Flexbox Layout

CSS Layout Techniques

Achieved
Mar 23, 2014
Achievement
Positioning Schemes

CSS Layout Techniques

Achieved
Mar 12, 2014
Achievement
Float Layout

CSS Layout Techniques

Achieved
Mar 11, 2014
Achievement
Display Modes

CSS Layout Techniques

Achieved
Mar 9, 2014
Achievement
Getting Started with Android Studio

Android Tools

Achieved
Feb 10, 2014
Achievement
Beyond the Basics

Objective-C Basics (Retired)

Achieved
Feb 10, 2014
Achievement
Advanced Objective-C

Objective-C Basics (Retired)

Achieved
Feb 9, 2014
Achievement
Foundation Framework

Objective-C Basics (Retired)

Achieved
Feb 9, 2014
Achievement
Introduction to Objective-C

Objective-C Basics (Retired)

Achieved
Jan 10, 2014
Achievement
Pointers and Memory

Objective-C Basics (Retired)

Achieved
Jan 9, 2014
Achievement
Functional Programming in C

Objective-C Basics (Retired)

Achieved
Dec 23, 2013
Achievement
Fundamentals of C

Objective-C Basics (Retired)

Achieved
Dec 23, 2013
Achievement
Installing MySQL Server and MySQL Workbench

Database Foundations

Achieved
Aug 18, 2013
Achievement
Using Intents to Display and Share Posts

Build a Blog Reader Android App

Achieved
Aug 18, 2013
Achievement
Adapting Data for Display in a List

Build a Blog Reader Android App

Achieved
Aug 17, 2013
Achievement
Getting Data from the Web

Build a Blog Reader Android App

Achieved
Jun 5, 2013
Achievement
Rebuilding from Scratch

Build a Blog Reader Android App

Achieved
Jun 4, 2013
Achievement
Exploring the Master-Detail Template

Build a Blog Reader Android App

Achieved
Jun 4, 2013
Achievement
Sharing Your Creation

Build a Simple Android App (retired 2014)

Achieved
May 31, 2013
Achievement
Interrogating the App

Build a Simple Android App (retired 2014)

Achieved
May 31, 2013
Achievement
Shaking Things Up

Build a Simple Android App (retired 2014)

Achieved
May 28, 2013
Achievement
Pretty Little Things

Build a Simple Android App (retired 2014)

Achieved
May 28, 2013
Achievement
Learning the Language

Build a Simple Android App (retired 2014)

Achieved
May 27, 2013
Achievement
Introduction to Data, Databases and SQL

Database Foundations

Achieved
Mar 27, 2013
Achievement
Functions

Introduction to Programming

Achieved
Mar 6, 2013
Achievement
Objects and Arrays

Introduction to Programming

Achieved
Mar 6, 2013
Achievement
Control Structures

Introduction to Programming

Achieved
Mar 6, 2013
Achievement
Basics

Introduction to Programming

Achieved
Mar 6, 2013
Achievement
Ruby Testing

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Standard Library

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Core

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Modules

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Procs & Lambdas

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Blocks

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Loops

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Methods

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Hashes

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Numbers

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Arrays

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Strings

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Objects, Classes, and Variables

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Ruby Basics

Ruby Foundations

Achieved
Mar 6, 2013
Achievement
Rails Deployment

Build a Simple Ruby on Rails Application

Achieved
Mar 6, 2013
Achievement
Building the Profile Page

Build a Simple Ruby on Rails Application

Achieved
Mar 5, 2013
Achievement
Testing the Whole App

Build a Simple Ruby on Rails Application

Achieved
Mar 4, 2013
Achievement
Rails Routing

Build a Simple Ruby on Rails Application

Achieved
Mar 4, 2013
Achievement
Writing Tests

Build a Simple Ruby on Rails Application

Achieved
Mar 4, 2013
Achievement
Customizing Ruby on Rails Forms

Build a Simple Ruby on Rails Application

Achieved
Mar 3, 2013
Achievement
Ruby on Rails Authentication

Build a Simple Ruby on Rails Application

Achieved
Mar 3, 2013
Achievement
Rails Frontend Development

Build a Simple Ruby on Rails Application

Achieved
Mar 2, 2013
Achievement
Location

iOS Foundations

Achieved
Mar 1, 2013
Achievement
Framework Foundations

CSS Foundations - Version 1

Achieved
Feb 4, 2013
Achievement
Gradients

CSS3

Achieved
Jan 31, 2013
Achievement
Borders

CSS3

Achieved
Jan 31, 2013
Achievement
Typography

CSS3

Achieved
Jan 29, 2013
Achievement
Selectors

CSS3

Achieved
Jan 29, 2013
Achievement
Web Fonts

CSS3

Achieved
Jan 29, 2013
Achievement
Printing

CSS Foundations - Version 1

Achieved
Jan 25, 2013
Achievement
Page Layout

CSS Foundations - Version 1

Achieved
Jan 25, 2013
Achievement
API Access

iOS Foundations

Achieved
Jan 24, 2013
Achievement
Box Model

CSS Foundations - Version 1

Achieved
Jan 24, 2013
Achievement
Text

CSS Foundations - Version 1

Achieved
Jan 23, 2013
Achievement
Data Types

CSS Foundations - Version 1

Achieved
Jan 23, 2013
Achievement
Selectors

CSS Foundations - Version 1

Achieved
Jan 23, 2013
Achievement
Introduction

CSS Foundations - Version 1

Achieved
Jan 23, 2013
Achievement
Text, Fonts, and Lists

CSS Foundations

Achieved
Jan 23, 2013
Achievement
Values and Units

CSS Foundations

Achieved
Jan 22, 2013
Achievement
Advanced Selectors

CSS Foundations

Achieved
Jan 22, 2013
Achievement
Selectors

CSS Foundations

Achieved
Jan 20, 2013
Achievement
Getting Started with CSS

CSS Foundations

Achieved
Jan 20, 2013
Achievement
Forms

HTML

Achieved
Jan 20, 2013
Achievement
Tables

HTML

Achieved
Jan 20, 2013
Achievement
Objects

HTML

Achieved
Jan 19, 2013
Achievement
Links

HTML

Achieved
Jan 19, 2013
Achievement
Lists

HTML

Achieved
Jan 19, 2013
Achievement
Fluid Foundation

Build a Responsive Website

Achieved
Jan 18, 2013
Achievement
Text

HTML

Achieved
Jan 17, 2013
Achievement
Introduction

HTML

Achieved
Jan 17, 2013
Achievement
Introduction to Responsive Web Design

Build a Responsive Website

Achieved
Jan 17, 2013
Achievement
Launching the Website

Build a Simple Website

Achieved
Jan 16, 2013
Achievement
Styling Content

Build a Simple Website

Achieved
Jan 16, 2013
Achievement
Creating a Website Structure

Build a Simple Website

Achieved
Jan 15, 2013
Achievement
Text Editors and HTML

Build a Simple Website

Achieved
Jan 15, 2013
Achievement
Website Basics

Build a Simple Website

Achieved
Jan 14, 2013
Achievement
Creating the Menu and Footer

Build a Simple PHP Application

Achieved
Jan 14, 2013
Achievement
Getting Started with PHP

Build a Simple PHP Application

Achieved
Jan 13, 2013
Achievement
Getting Started with Android

Build a Simple Android App (retired 2014)

Achieved
Jan 12, 2013
Achievement
Rebuilding from Scratch

Build a Blog Reader iPhone App

Achieved
Jan 11, 2013
Achievement
Exploring the Master-Detail Template

Build a Blog Reader iPhone App

Achieved
Jan 8, 2013
Achievement
Web View

iOS Foundations

Achieved
Jan 8, 2013
Achievement
Getting Started With Rails

Build a Simple Ruby on Rails Application

Achieved
Jan 8, 2013
Achievement
Share Your Creation

Build a Simple iPhone App

Achieved
Jan 8, 2013
Achievement
Animate This

Build a Simple iPhone App

Achieved
Jan 8, 2013
Achievement
Shaking Things Up

Build a Simple iPhone App

Achieved
Jan 8, 2013
Achievement
Making It Pretty

Build a Simple iPhone App

Achieved
Jan 8, 2013
Achievement
Learning the Language

Build a Simple iPhone App

Achieved
Jan 8, 2013
Achievement
Getting Started with iPhone

Build a Simple iPhone App

Achieved
Jan 7, 2013
Achievement
App Settings

iOS Foundations

Achieved
Jan 7, 2013
Achievement
Blocks and Categories

iOS Foundations

Achieved
Jan 7, 2013
Achievement
Appearance

iOS Foundations

Achieved
Jan 7, 2013
Achievement
Notifications

iOS Foundations

Achieved
Jan 7, 2013
Achievement
Automatic Reference Counting

iOS Foundations

Achieved
Jan 6, 2013
Achievement
iOS 5 Core Data

iOS Foundations

Achieved
Jan 6, 2013
Achievement
Storyboards

iOS Foundations

Achieved
Jan 6, 2013
Achievement
Treehouse Scholarship

Achieved
Oct 5, 2012
Achievement
Newbie

Achieved
Oct 5, 2012