Javascript Programmers and Developers

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Veselin K.

Veselin K.

Software Engineer - JavaScript / CSS, Java / C++, PHP, MySQL

Bulgaria - Tests: 7 - Portfolio: 8

Over the last years I was involved in developing a wide range of web applications. I prefer to concentrate on providing a nice web 2.0 user experience by developing sophisticated JavaScript front-end. Nevertheless I'm good at developing a full website solution on top of LAMP stack. Before going to web I have gathered extensive experience developing desktop applications in Java or C++

$40.00 /hr
9,478 hours

Andrey E.

Andrey E.

Web Developer (NodeJS, PHP, Javascript, Redis) | Web scraping expert

Russia - Tests: 6 - Portfolio: 16

TOP-RATED UPWORK DEVELOPER, SEE BADGE ON THE RIGHT SIDE. I'm web scraping expert/full stack NodeJS/Javascript/PHP developer with 7+ years of commercial experience. I'm good problem solver holding M.S. in maths and computer science. Today I'm offering webscraping/php/javascript services as a freelancer. I'm Top Rated Upwork developer. My main skills: • Web scraping, parsing, automation, data processing • Simplehtmldom, Goutte, Symfony Browser Kit, Cheerio, CasperJS, Regular Expressions, Xpath • PHP, JavaScript, Java, NodeJS, PhantomJS, SlimerJS, LUA • Laravel/Lumen frameworks • HTML5, CSS3, LESS, Bootstrap Framework • MySQL, MongoDB, Redis • Memcached, ZeroMQ, ReactPHP • SocketIO, Websockets • REST, SOAP, XML, JSON • Matlab, Wolfram Mathematica • Jquery, KnockoutJS, BackboneJS, RequireJS • Prestashop, OpenCart • Experience working with APIs: Ebay, Spotify, Amazon AWS, Amazon MWS, Flickr, Facebook Graph,, GitHub, Instagram and several others • Git, SVN • Apache, Nginx, Curl • Amazon AWS • Linux, Vagrant • Understanding of OOP principles and software design patterns • Teamwork experience I have a github account and personal blog. Unfortunately Upwork doesn't allow to share these details in overview:) Over the years I’ve developed a lot of web scrapers of different complexity mostly using PHP (simplehtmldom, browserkit) and NodeJS/PhantomJS (casperjs). Some were simple regex-based and others were complex distributed systems with multiple proxies and Amazon AWS support. Also I developed a wide range of websites using PHP, HTML, JavaScript, CSS and MySQL including several e-commerce websites (+ Prestashop, Opencart). I built sites both from scratch and using frameworks, developed custom modules and extended existing ones for my clients. I have experience in PHP/MySQL performance tuning. Last two years I was working as MMO game (Clash of Clans/Heroes of Might and Magic-like mechanics) logic/backend developer. I’ve implemented distributed message queues, realtime leaderboards with Redis, Mysql, PHP. Developed battle-related algorithms (game unit classes, attack/defend, shortest path, quadtree). Then I’ve done some frontend development, e.g. – developed embeddable javascript classifieds widget and fitness/health single page web application with realtime updates/notifications (HTML, CSS, JavaScript, Jquery, Knockout.js, MomentJS, REST, AJAX,

Groups: Coding Champs

$50.00 /hr
266 hours

Andrey Gubanov

Andrey Gubanov

Senior JavaScript developer

Ukraine - Tests: 8 - Portfolio: 8

**Looking for long term contract** My main skill is creating single page web applications (JavaScript, HTML, CSS) which are: - Fast and responsive - no UI lags for users - Modular - another programmer can easily extend any app made by me - Stable - tools used by me are verified by my experience (6+ years) - Functioning - I test every part of an app very carefully What do I use: - Module loaders: SystemJS, RequireJS - Building tools: Grunt, Gulp, NPM - Programming language: ECMAScript 6/7 compiled to cross-browser JavaScript via Babel (I love it!) - CSS preprocessor: SASS (SCSS), PostCSS - Unit testing: Jasmine, Karma runner - JavaScript Frameworks: MatreshkaJS, React - DOM library: jQuery, Balalaika, VanillaJS - Server programming: NodeJS, Express - Server databases: MongoDB, MySQL - CSS framework: Bootstrap, MaterializeCSS, Onsen UI - Data visualization: Highcharts, d3, VanillaJS - Desktop apps: nw.js, Electron - Mobile apps: Phonegap, ... And other cool and modern tools Besides, I can: - Work with any API (Parse, Firebase, Google...) - Make offline web application via HTML5 cache - Make an app which doesn't require server programming at all (if it's posible) - Learn any new technology if it's needed I love open source and I have few projects made by me. You can find them on my Github pages. There is my personal profile: There is my organization profile:

$47.00 /hr
3,600 hours

Evgeny Bartashevich

Evgeny Bartashevich

PHP, Javascript, Node.JS developer

Russia - Tests: 4 - Portfolio: 5

At a glance, I have experience in following areas: Yii1, Yii2, Phalcon, node.js, Joomla, Javascript, jQuery, Css3, Html5, Twitter Bootstrap, Sphinx, Redis, Firebase Have a lot of experience in developing Joomla extensions, Joomla templates, developing SOAP services and clients, developing web applications using Google and Yandex services (including Google and Yandex Maps), authorization / authentication with openID / Oauth, Twitter, Facebook services. Have some experience with Drupal and Ubercart, developing Drupal & Ubercart modules Frameworks used: Joomla, Drupal, Yii1, Yii2, Phalcon, Sails. Have experience with payment gateways : Paypal, Google Checkout, Authorize.NET

$40.00 /hr
4,020 hours

Uladzimir L.

Uladzimir L.

Fullstack javascript developer

Belarus - Tests: 3 - Portfolio: 1

Hi! My name is Uladzimir and I'm reliable and highly skilled fullstack javascript developer with over 5 years of experience in IT and more than 2 years in javascript. Right now my main focus is: - Frontent: AngularJS(code contributor), Backbone.js, React.js - Backend: Node.js, io.js - Mobile development: Cordova/Phonegap, Ionic framework As well I took part in architecture development of several distributed, scalable and high-loaded solutions like credit history management system and airfare search engine. In my free time, I like to work on my own projects, that's why I can give you some advice for your product. I always try to keep my hand on the pulse of technologies and play with some not mainstream technologies like Scala, Golang etc. I look for new challenges and great opportunities to design and develop different projects. I always try to keep my customers happy. I do opensource a bit. You can check out my github account: As well you can check out my LinkedIn profile: Feel free to contact me, you won't regret :).

$60.00 /hr
287 hours

Yuriy Pobezhymov

Yuriy Pobezhymov Agency Contractor

PHP/Drupal/JavaScript developer

Ukraine - Tests: 5 - Portfolio: 7

I have programming experience of more than 10 years. Sufficient experience with Drupal module development (7+ years). I love my work. I like to have it done right way, to have customers satisfied and to be proud for it. I realize that my skills are in fact my assets, so I never miss a chance to get more knowledge and more experience whatever it can be if I see it can be useful. I have skills in creating complex Drupal modules, that include deep integration with Drupal core and other contributed/custom modules. Worked with different Drupal-based eCommerce solutions like Ubercart, Drupal Commerce. I frequently use Yii framework for the non-Drupal development, familiar with Symfony, CodeIgniter. I like JavaScript. I have experience/skills in complex development of front-end sides (not only for Drupal). I use jQuery, Backbone, AngularJS, AngularUI (with Bootstrap), ES6 (Babel), D3.js and other cool things that brings JavaScript world to us. Have a master-degree Brainbench certificate on PHP 5.5 (Second rank in Top 10). I am confident that I can help you with all your Drupal needs. Please feel free to drop me a line to discuss your project!

Groups: Bluehost Developers and Designers, Drupal

$25.00 /hr
2,307 hours

Stanislav Morozov

Stanislav Morozov Agency Contractor

Expert JavaScript BackboneJS Developer

Russia - Tests: 2 - Portfolio: 2

I'm over 6 year so pro-administration and more than 10 years of having it as a desire and the way of life. Mostly interested in AngularJS/Backbone/CSS3, ASW set up, nginx, unix help. But honestly I can do almost anything if you really need something. My skills are: - Javascript (including ecmascript 5), xmlhttprequest; - Library/Frameworks: BackboneJS, RequireJS, RactiveJS, Jquery, JqueryUI; - HTML5 (audio (audioContext + offlineAudioContext), canvas, localstorage, web workers), css3; - SVG: raphael-js or d3js - Adaptive layouts, less or sass; You can have a look at some cool stuff here:

$40.00 /hr
132 hours