Ruby Javascript Freelancers

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Nadia Z.

Nadia Z.

Ruby and Javascript developer

Germany - Last active: 10/07/2014

I offer complete web application development in Ruby and Javascript, from conceptualization to deployment, excluding pure visual design, but including UX considerations. I work thoroughly, reliably, as fast as I can, and I like to keep in touch with you from beginning to end. I'm available for real-time communication during European business hours, and will structure my schedule around your timezone if your project occupies the majority of my time.

$55.56 /hr
145 hours
5.00
George Bragin

George Bragin

Ruby/Javascript Developer

Russia - Last active: 3 months ago - Tests: 2

In the last 3 years I have developed many desktop-apps (C#, WinForms, WPF, XNA) and web-apps. As a web application developer I feel free with: ASP.NET MVC Framework, Ruby on Rails, Django and Google AppEngine. Also I love TDD and BDD with RSpec and Cucumber. And I think git and hg is very cool things.

$40.00 /hr
52 hours
4.78
Oscar Rendon

Oscar Rendon

Ruby, Rails and Javascript lover

Colombia - Last active: 01/09/2014 - Tests: 6 - Portfolio: 2

Over the last 7 years, I have developed a lot of solutions with primary focus on web applications. My core skills are: Ruby, Ruby on Rails, Javascript/Ajax, C#, ASP.NET, HTML5, MySQL, SQLServer, Oracle. I also used to work with LAMP. I've solid experience on Cloud (Heroku, GAE), windows/linux server administration, software architecture and high level design. My github profile: https://github.com/orendon

$60.00 /hr
260 hours
5.00
Andriy P.

Andriy P.

Senior Software Engineer (Ruby, Ruby on Rails, Jav...

Ukraine - Last active: 7 days ago - Tests: 8 - Portfolio: 4

Have 10 years of commercial software development experience. 6 years, I work with Adobe Flex 3/4 and AIR technologies. Using MVC, design patterns, PureMVC / Caingorm / Mate / Robotlegs frameworks, strong knowledge of performance issues solving, memory leaks, working with large data sets in Flex, custom components development, spark skinning. Last 4 years, I work as senior Ruby on Rails engineer. Using Ruby, Ruby Rails, Javascript / Coffeescript, CSS / SCSS, HTML5 / HAML, Bootstrap, Backbone, AngularJS, Handlebars, jQuery, Ajax.

$38.89 /hr
2,373 hours
4.91
Eugen O.

Eugen O.

Ruby on Rails, JavaScript, SQL, jQuery, AngularJS

Belarus - Last active: 15 days ago - Tests: 4 - Portfolio: 3

Senior Ruby Developer, 3.5+ years of experience in Analysis, Estimate, Design, Development and Maintenance of Web­based Software applications in a bunch of domains including News, E­ticket, Social network, ERP and Internet/telephony billing. Experience in both UI programming and Server Side programming. Profound knowledge of Ruby and JavaScript (CoffeeScript), particularly developing rich internet applications based on Rails and AJAX (JS frameworks ExtJS, Spine, AngularJS). Proficient in HTML, CSS and their wrappers haml, slim, sass. Have knowledge in C, C++, C#, Java, Erlang, Haskell, MATLAB (Octave) and R languages, Design patterns, UML, Object Oriented Design, Test/Behavior ­Driven Development, unit and integration testing (using RSpec, Cucumber and Capybara). Worked with relational databases MySQL, PostgreSQL, MS SQL and NoSQL solutions: Cassandra, Redis, MongoDB, Neo4j. Skilled in HTTP, REST, XML and JSON. Have experience in cloud solutions (Amazon AWS, Heroku) and Linux distributions. Expertise in estimating of the development efforts based on project scope on initiation phase, analysis of the complex business logic; support and maintenance of the live applications; performing of technical examination and prove­of­concepts (prototyping) for the effective solutions; code review; communication with the development team and QA; direct dialog with the Client.

$33.33 /hr
77 hours
5.00
Vladimir Myskov

Vladimir Myskov Agency Contractor

Web Developer - Ruby, Python, Javascript, Phonegap

Ukraine - Last active: 2 days ago - 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

Associated with: CodeArt
$33.00 /hr
925 hours
4.96
Ana maria B.

Ana maria B.

Web Developer: Ruby and rails, javascript, css...

Venezuela - Last active: 01/22/2010

$44.44 /hr
1,416 hours
5.00