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Matúš Koprda
Verified Expert in Engineering
Chrome Extensions Developer
Bratislava, Bratislava Region, Slovakia
Toptal member since January 24, 2015
Bio
Matúš is a skilled full-stack developer with nine years of experience freelancing for small to medium-sized companies and startups. He has worked with individuals and remote teams across Europe on a wide range of projects including browser and PC games, Chrome extensions, Windows apps, hybrid mobile apps, and front- and back-end for a lot of websites. He loves to write clean, maintainable code and pays great attention to detail.
Portfolio
Freelance
CSS, Unity, C#, Node.js, Laravel, PHP, jQuery, JavaScript, HTML
Learn2code
Laravel, Electron, Phaser.io, Webpack, Babel, JavaScript
Quantopy
JavaScript, C++, C#
Experience
- JavaScript - 9 years
- PHP - 9 years
- HTML5 Canvas - 4 years
- Node.js - 4 years
- Chrome Extensions - 3 years
- C# - 3 years
- WebGL - 3 years
- Three.js - 2 years
Preferred Environment
Windows, Adobe Photoshop, Git, Visual Studio Code (VS Code)
The most amazing...
...software I've built is a multi-platform 2D game with scripting support, rigid body physics, and a fully integrated level editor.
Work Experience
Full-stack Web Developer
2007 - PRESENT
Freelance
- Created and led development of several complex websites using Yii and Laravel frameworks. Created over twenty small WordPress websites with custom themes and plugins.
- Developed several browser-based games as well as PC games and prototypes in Unity and MOAI SDK.
- Worked on Windows apps in C# and a lot of smaller apps packaged in nw.js and Electron for automation of tasks for small companies.
- Built scene manipulation for a 3D modeling app in WebGL and AngularJS. Made a real-time radio wave visualization in WebGL for a CES tech demo.
- Co-founded four startups/projects and sold three of them (cenoveponuky.sk, zajtra.sk, bedrooms.sk).
Technologies: CSS, Unity, C#, Node.js, Laravel, PHP, jQuery, JavaScript, HTML
Game Developer, Web Developer
2016 - 2017
Learn2code
- Created an educational browser game using Phaser (an HTML5 game engine) that teaches kids the fundamentals of programming using Scratch blocks.
- Developed a custom level editor in Electron for building levels for the game.
- Created a back-end in Laravel that synchronizes game progress and provides a teachers section with class management, student progress, and statistics.
Technologies: Laravel, Electron, Phaser.io, Webpack, Babel, JavaScript
App Developer
2015 - 2016
Quantopy
- Created an efficient computer usage tracker for Windows in C# with native modules in C++.
- The app tracks rate of typing, keyboard shortcuts, click count, and distance travelled with mouse, open windows and focus changes, tray icons, CPU, HDD and network usage, hardware info, and installed apps.
- Wrote a supporting Node.js server which synchronizes user settings across multiple installations and sends events to an Apache Kafka system.
- Created multiple custom Chrome extensions for user behavior testing and tracking. The tracking extension is able to collect open tabs, tab metadata, focus changes, rate of typing, physical location, user activity, installed extensions, downloads, and bookmarks, and extract partial data from the history.
- Created a utility that recorded a user with a webcam, processed the image with OpenCV, and extracted facial emotion data for further analysis.
Technologies: JavaScript, C++, C#
Developer
2015 - 2015
Ably (via Toptal)
- Created a modern open source PHP library over a RESTful API that provides easy messaging services and various authentication tools for Ably.io.
- Wrote integration and unit tests in PHPUnit for all the components in accordance with the base Ruby spec. Used shared fixtures in a Git sub-module to ensure compatibility across client libraries.
- Wrote the library according to latest best practices. Documented code as per PHPDoc guidelines with full code completion support. Packaged the library for Composer/Packagist (with PSR-4 class loading). Tested with Travis CI. All the code is available on GitHub at https://github.com/ably/ably-php.
Technologies: Composer, PHPUnit, PHP
Experience
Portfolio
You can find the most complete and up-to-date portfolio of my projects on Blade.
GalaxyCodr
A browser based educational game that teaches kids programming with Scratch blocks. The game was written in ES6, bundled with Webpack and is using Phaser.io engine and Blockly library. I also developed a custom level editor for the game in Electron and created a back-end in Laravel that synces game progress and allows teachers to manage classrooms and view their students' progress.
UGO Hybrid Mobile App
http://www.ugoocista.cz/A hybrid (Cordova) mobile app for iOS and Android for a major Czech raw juice manufacturer. The app serves as a guide for juice based body cleansing diet.
Tech used: Cordova, ES6, Browserify, Onsen UI
Tech used: Cordova, ES6, Browserify, Onsen UI
Vectary 3D Editor
http://vectary.com/I worked as a part of a team on an online 3D modeling editor for direct use with 3D printers, developing user interfaces, navigation, and manipulation of the 3D scene.
Technologies used: Three.js, AngularJS, Node.js, Gulp, GLSL
Technologies used: Three.js, AngularJS, Node.js, Gulp, GLSL
Minimap for Pebble Smartwatch
https://blade.sk/projects/mini-map-pebble/I created a simple zoomable map that shows your location on your Pebble smartwatch. The app is currently the most liked free map for Pebble.
Automated SMS Gateway
A suite of applications for an attorney's office that automates sending SMS notifications to debtors. The suite includes:
- An Android SMS relay.
- A node-webkit based desktop app for management of pending messages, importing messages from other software and sending messages through an Android phone.
- A desktop app (C#) for manually sending messages by assistants in the office.
- An Android SMS relay.
- A node-webkit based desktop app for management of pending messages, importing messages from other software and sending messages through an Android phone.
- A desktop app (C#) for manually sending messages by assistants in the office.
HI WiFi Visualization
A WebGL visualization of signal propagation of a WiFi router, a tablet and objects between them. This was used on a CES 2015 demo of a security system. The data was read through Web Sockets from physical devices in real-time.
Automatic Betting System
Automated a complex betting strategy, where the system fetches and analyzes odds and match data from multiple bookmakers and places bets if favorable conditions occur. The system was completely automated and generated solid revenue until the bookmaker decided to ban it.
Technologies used: node-webkit, Node.js, MySQL
Technologies used: node-webkit, Node.js, MySQL
Adatlap House Configurator
A web app created for a construction company that enables their clients to easily configure and customize various parts (over eighty in total) of the house they're buying. The system is able to create complex estimates of prices and select questions based on user's previous answers.
Technologies used: Yii Framework (PHP) and jQuery
Technologies used: Yii Framework (PHP) and jQuery
Swich! The Game
An endless runner game made during the Ludum Dare competition in 3 days (~36 hours). An enhanced version was later released for Android and iOS.
Technologies used: Lua, MOAI SDK(C++), Box2D
Technologies used: Lua, MOAI SDK(C++), Box2D
Bedrooms.sk Rental Finder
http://bedrooms.sk/I worked as a lead programmer and secondary UI designer on a real estate aggregator startup. Its notable features are:
- Filters that use data parsed from listing's text
- Listings displayed directly on map with search by position and radius
- Almost click-free single-page interface
- Aggregation of multiple listings for the same apartment into one based on similarity of text and images
- Our own translation engine
We eventually sold the project, as we couldn't compete with the existing websites with just a better interface.
Technologies used: Yii Framework (PHP), jQuery, Google Maps API
- Filters that use data parsed from listing's text
- Listings displayed directly on map with search by position and radius
- Almost click-free single-page interface
- Aggregation of multiple listings for the same apartment into one based on similarity of text and images
- Our own translation engine
We eventually sold the project, as we couldn't compete with the existing websites with just a better interface.
Technologies used: Yii Framework (PHP), jQuery, Google Maps API
Education
2009 - 2011
Master's Degree in Applied Informatics
University of Economics - Bratislava, Slovakia
2006 - 2009
Bachelor's Degree in Informatics and Information Technology
Slovak University of Technology - Bratislava, Slovakia
Skills
Libraries/APIs
Node.js, HTML5 Canvas, jQuery, Google Maps, Three.js, NW.js, WebGL, Leaflet, Vue, OpenGL, Windows API
Tools
Sublime Text 2, Adobe Photoshop, AutoHotkey, Composer, Babel, Webpack, Webpack 2, Git
Languages
ECMAScript (ES6), JavaScript, HTML, Lua, C#, PHP, CSS, Java, GLSL, C++
Frameworks
Yii, Unity, Unity3D, Laravel, PHPUnit, Phaser.io, Electron
Paradigms
Promise, Socket Programming
Platforms
Windows, Visual Studio Code (VS Code), Docker, Android, Linux
Storage
SQLite, MySQL, MongoDB, PostgreSQL
Other
Chrome Extensions, Scraping, WebSockets, User Interface (UI), Cordova, Game Design
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