Ruby Javascript Freelancers

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Vladimir Myskov

Vladimir Myskov Agency Contractor

Web Developer - Ruby, Python, Javascript, Phonegap

Ukraine - Tests: 10 - Portfolio: 3

I'm a Ruby on Rails developer, with a good experience in Python (Django/Tornado/Scrappy) and PHP (Typo3, Drupal, CodeIgniter) as well. Basically, I prefer Ruby and Python for back end development now. Besides, I was a front end LD in the past, in a team dealing with eDetailing solutions development for mobile devices (mostly for iPad) based on web technologies, specifically html5/css3. I've got a good experience in building javascript-based application and their optimization for mobile devices that way. We were using the raw javascript (no frameworks) to be flexible enough, but in the mean time I've got the Backbone, Knockout, SenchaTouch and jQuery experience. Here's my technologies/frameworks/libraries skills summary: Javascript: Ajax, WebSockets, SVG, RaphaelJS, Touch devices. Php: Typo3, Drupal, CodeIgniter Python: PyQt4, NumPy Ruby: Rails SCM: git, svn

$33.00 /hr
1,537 hours

Rui Gomes

Rui Gomes

Web Developer - Proficient in PHP, Laravel, Javascript, Ruby on Rails

Portugal - Tests: 4 - Portfolio: 3

I've worked closely with world-class companies throughout the development of outstanding platforms that have been used by thousands. I'm proficient with PHP and I'm also a Laravel early-adopter - I've been using it since early version 3. I've developed countless applications with Laravel, attended the Laracon conference in Amsterdam and I've written several tutorials that have helped hundreds of other developers. In addition to PHP, I've also used Ruby on Rails extensively to develop complex web applications with full featured test suites. Being a Software Engineering student, you'll be sure to get solutions that are well designed, easy to scale and develop upon. I've taken a CAE (Certificate in Advanced English) by the University of Cambridge and passed with flying colours. Communicating with me won't definitely be an issue. Looking forward to working with you on your next web app!

$70.00 /hr
175 hours

Alexey K.

Alexey K.

Full-stack Ruby/Rails/Sinatra, Coffeescript/Javascript, GO developer

Russia - Tests: 3 - Portfolio: 3

More than 15 years working as a software engineer. I was involved in the design and development of software of varying complexity, with a large stack of technologies used. I'm self-motivated in improving my skills and learn something new. I have a positive experience of developing and supporting backends for mobile applications using RoR and Sinatra frameworks and mobile applications for the iOS platform. I have a positive experience of designing and developing large high-load application with microservices architecture with using GOLang/Ruby as language for development, Redis for caching and fast storage, PostgreSQL for persistent data storage, RabbitMQ for message routing, JSON as message format and Docker/Ansible for deployment.

$33.33 /hr
509 hours

Erik Majlath

Erik Majlath

Ruby and Javascript developer

Slovakia - Tests: 3 - Portfolio: 1

Welcome to my profile! I am full-stack Ruby and Javascript developer from Slovakia with 5 years of experience in web dev. I enjoy working on Rails and Backbone apps — architecture design, coding, testing and maintaining. I am a professional remote worker and upWork is my only job. This means I work on the time that I'm the most productive. As a developer I love to participate in and launch long-term projects and create production-quality web apps with well-thought architecture, thorough test coverage and clean, readable code. * Fluent English, UTC+1 time zone * Serious Javascript development for 5 years /Backbone, Marionette, Coffeescript * Ruby development for 2 years /Rails, Sinatra * PHP development for 3 years /CodeIgniter, Slim For work portfolio and previous experience please refer below. Hope to talk to you soon. Erik Majáth.

$44.44 /hr
313 hours

Petros C.

Petros C.

Ruby on Rails / Javascript Engineer

Canada - Tests: 6 - Portfolio: 3

About me : I have 8+ years of experience in different fields of software design and development. Over the past 5 years I have used all my skills and various technologies like RoR, OO JavaScript, Angularjs, Backbone, Html5, Css3, with the most effective way and tried to help other passionate people achieve their own goals. I have worked with most of the JavaScript frameworks like angularjs and backbone in various web and mobile projects and obtained a thorough knowledge of the front end dynamic environment. I'm constantly looking and embracing new technologies and stay updated, I also consider myself to be a problem solver with very good communication skills (activity of conveying information through the exchange of ideas).

Groups: Upwork Verified Developers

$32.00 /hr
65 hours

Oscar Rendon

Oscar Rendon

Ruby/Rails, JavaScript, Elixir/Erlang

Colombia - Tests: 6 - Portfolio: 2

Experienced Software Engineer, operating on the entire software life cycle, from conception to product release. Solid background on software design and software architecture. I've worked with C#/.NET stack, but now I mainly working with Ruby and Elixir/Erlang. I have a significant interest for most functional languages like Clojure, Haskell, Elixir/Erlang (plus Golang), Current Toolkit: Ruby, Javascript, Elixir, Erlang/OTP, AWS. Approach: Component based, test driven, results oriented, collaborative environments. Research/Interest Areas: Distributed Systems, Functional Programming, Data Science, Healthcare IT. I'm also co-organizer of Ruby Medellin meetup, Rails Girls workshops and RubyConfCo conference. My github profile:

Groups: Engine Yard Ruby on Rails Professionals Network

$50.00 /hr
440 hours

Vadim Marchenko

Vadim Marchenko

Ruby on Rails / JavaScript Developer

Russia - Tests: 5 - Portfolio: 8

I’m a seasoned Ruby / JavaScript developer with over 5 years of experience. I have experience in developing web-applications & services with both standard functional and unusual features using different platforms and technology stacks. I know how to pick the right instrument to reach the goal. I’m good at: developing multiplatform and security sites, database design, using version control system, using TDD and tests, working in a team, and more. Possess strong technical skills in Ruby on Rails, node.js, Bitcoin stack, CoffeeScript, PostgreSQL.

$33.33 /hr
2,880 hours

Aleksey Stroyevskiy

Aleksey Stroyevskiy Agency Contractor

Ruby on Rails / Javascript / SQL

Russia - Tests: 6

Hi! I'm a professional web developer. I have more than 3 years of the experience. I work with these languages: Ruby, JavaScript, SQL and etc. My main skills are: ✓ Ruby / Rails 3.x / Rails 4.x ✓ Javascript & Coffescript (Node.JS / Client MVC frameworks) ✓ PHP / Zend / Codeigniter / Kohana / Yii ✓ HTML / DHTML / HTML5 / CSS / HAML / Less / Compass ✓ MySQL / PostgreSQL / nosql If you need a good and high quality web application, I will be glad to develop it for you.

$30.00 /hr
1,230 hours

Krishnaiah S.

Krishnaiah S. Agency Contractor

Ruby/Rails/Javascript Senior Developer

India - Tests: 6 - Portfolio: 10

If you need a rockstar ruby developer who will be passionate about your project and new techonogies then contact me Specialties: Ruby on Rails, Bootstrap, AngularJS, NodeJS, Backbone, jQuery, CoffeeScript, TDD, BDD, RSpec, Cucumber, Social Networking, RESTful API, Redis, Memcache, mysql and Postgresql Experience: git, mysql, postgresql, mongoDB, Redis, memcached, apache, nginx, unicorn, capistrano and cloud setup

Groups: Engine Yard Ruby on Rails Professionals Network

$67.00 /hr
8,516 hours