Ruby Developer Freelancers

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  1. Sviatoslav Bulbakha

    Sviatoslav Bulbakha

    Experienced Ruby, Python and Javascript developer

    Russia - Last active: 5 days ago - Tests: 6 - Portfolio: 4

    Over the last 7 years, I have developed wide range of websites using Python/Django and Node.js/Express. Also I have 5 years experience in Ruby and very good front-end skills. My experience: * Back-end: ** Python (Django) - over 7 years ** Ruby (Rails) - over 5 years ** Node.js (Express.js) - over 4 years * Front-end - over 7 years: ** HTML (Jinja2, Jade) ** CSS (LESS, Stylus, SASS) ** JavaScript (jQuery, Backbone + Marionette) * Data crawling (Selenium/RegExp) - over 7 years I am also skilled in: * Git * Unit testing * Linux administration * RESTful API design

    $38.89 /hr
    160 hours
    5.00
  2. Rômulo S.

    Rômulo S.

    Software Developer - Python, Ruby, Java, JavaScript

    Brazil - Last active: 13 hours ago - Tests: 4 - Portfolio: 8

    Senior software developer with a broad skill set. Very quick learner. I do my best to write beautiful, efficient, and thoroughly tested code. I've handled all kinds of code bases - small to large, simple to complex, ancient to bleeding edge. I'm comfortable with any modern programming task. I've been a Linux user for over a decade and I'm well versed in server administration. Available part time, 10-30 hrs/week @ EST+3. Currently looking for Python, Ruby, node.js, Java, C# and JavaScript jobs. Programming languages and frameworks I have worked with: Python - Django, Flask Ruby - Rails, Sinatra Node.js JavaScript - jQuery, Backbone, Marionette, Angular Java - Spring, Play .NET - C#, ASP.NET MVC PHP - Wordpress, Laravel, Silex, Symfony Shell scripting MUMPS - InterSystems Caché Databases I have worked with: MySQL Postgres SQL Server Ingres MongoDB InterSystems Caché

    $55.56 /hr
    342 hours
    4.98
  3. Damir Sultanbekov

    Damir Sultanbekov

    Java EE/Ruby on Rails/SQL Developer

    Russia - Last active: 1 day ago - Tests: 7

    Highly motivated developer with more than 11 years of experience. I always try to perform my tasks as good as possible. Like work in team, but also have no problems working alone. 8 years in Java & J2EE field (EJB, JPA, JSP/Servlets, Portlets, WebServices, Spring Framework, Grails, etc.) 5 years in position of TeamLead/Architect. In latest months learned Ruby/Rails. Experienced in web development using HTML/CSS/Javascript: Jquery, Dojo Toolkit, Bootstrap Have no problems with all aspects of database programming, worked with many database systems, including Oracle, IBM DB2, Postgresql, MS SQL Server and others. In past worked with Delphi, C#/Mono, C/C++, Mumps Worked on large-scale projects for russian goverment and commercial institutions such as Sberbank (largest bank in Russia), Russian Federal Agency of Communications, Russian Pension Fund and others. You can read more about my previous positions in my linkedin profile: https://www.linkedin.com/profile/view?id=183664212&trk=spm_pic

    $35.00 /hr
    280 hours
    5.00
  4. Roman P.

    Roman P. Agency Contractor

    ♦♦♦ SN. RUBY DEVELOPER ♦♦♦ (Scripting, Web Development, Tesing)

    Germany - Last active: 13 hours ago - Tests: 5 - Portfolio: 13

    • Over 11+ years of experience in Software Development, including: - 5+ years of experience with Ruby/Rails - 6+ years of experience as an Automation Test Engineer - 3+ years of experience as an Oracle Developer, Oracle DBA • Strong knowledge of the whole software development process, methodologies (RUP, Agile) and platforms • A quick learner, communicative and very well motivated. Extremely interested in constant learning and improving my skills

    Associated with: StrongQA, Ltd.

    $60.00 /hr
    4,306 hours
    4.91
  5. Ivan I. Parfenchuk

    Ivan I. Parfenchuk Agency Contractor

    iOS/Ruby on Rails Top Rated Developer

    Russia - Last active: 17 days ago - Tests: 6 - Portfolio: 11

    Hello and thanks for considering me for your project! My iOS experience includes expert-level proficiency in all the core iOS components and frameworks like UIKit, Core Data, MapKit, Core Animation, Quartz 2D and so on, integration with various APIs and web services. I usually use Cocoapods for managing libraries, both Storyboards and xibs for interface, KIF/specta/expecta for tests and specs. Also, I'm already using Swift components in my production apps. My Ruby on Rails skill set includes working with MySQL/PostgreSQL, MongoDB, RSpec/TestUnit/Capybara, Slim/Haml/ERB/RABL, JavaScript/CoffeeScript, Ember.js, Sidekiq and other numerous gems and technologies. Feel free to contact me for any kind of work. Objective C, iOS, Mac OS X, C, C++, Ruby, Ruby on Rails, Ember.js, MySQL, PostgreSQL, MongoDB, Rspec, Parse, C#, REST, PHP, XML, XSLT, JSON, XCode, Unit testing, Integration testing, Core Data, MapKit, Core Animation, Quartz 2D, ShareKit, MagicalRecord, KIF, specta, expecta.

    Associated with: uSpec

    $40.00 /hr
    1,499 hours
    5.00
  6. Vladimir Myskov

    Vladimir Myskov Agency Contractor

    Web Developer - Ruby, Python, Javascript, Phonegap

    Ukraine - Last active: 1 day 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
    1,044 hours
    4.96
  7. Artem Fedorov

    Artem Fedorov

    Senior Full-Stack Developer - Ruby on Rails

    Russia - Last active: 08/27/2014 - Tests: 3 - Portfolio: 4

    With experience in programming for over 14 years, I've been doing Ruby & Ruby on Rails web development for the last 4+ years. I love concentrating on the end result and final polish - that's what user will see and interact with. As a result of this thoroughness and attention to detail, my open-source history viewing plugin for Miranda IM (http://addons.miranda-im.org/details.php?id=2995) became Miranda's de-facto standard. In addition to ruby, I know and use the following frameworks/technologies: CSS, AJAX, HAML, SLIM, SASS, SQL (MS SQL, SQLite, MySQL, PostgreSQL), NoSQL (MongoDB). My main expertise is Ruby (and Rails) - I've got 2nd place in oDesk Coding Challenge among Ruby developers. Also, I'm in the top 10% in Ruby and Ruby on Rails tests on oDesk. My projects do deployment, server provisioning and production error reporting automatically. I use Capistrano to deploy projects, Ansible for server provisioning and New Relic with Airbrake or Rollbar to monitor app in production. I can read other languages, like php, java, perl, python, c/c++. https://github.com/artemf/

    Groups: Coding Champs, Upwork Verified Developers

    $80.00 /hr
    117 hours
    5.00
  8. Dmitry Solomadin

    Dmitry Solomadin

    Ruby on Rails/Node.js/Java Developer

    Ukraine - Last active: 08/20/2013 - Tests: 10 - Portfolio: 5

    Full stack Ruby on Rails/Java Developer with more than 6 years of experience. Worked on wide range of web application from small web startup to huge enterprise software. Experience in following technologies: java, RoR, javascript, html, css, coffeescript, jquery, mysql and many others. Experience of team leading and project management. I'm seeking for front-end and back-end development basically building the your site or startup form ground up. I also have a team of professional web developers and designers so if you have a complex project that will require more than one professional just contact me and we will deliver the best quality possible.

    $36.67 /hr
    532 hours
    5.00
  9. Sergey Balbeko

    Sergey Balbeko

    Ruby / Rails Developer, DevOps and Systems Engineer

    Ukraine - Last active: 02/13/2014 - Tests: 9 - Portfolio: 1

    If you are looking for skilled Ruby / Rails / Node.JS back-end developer or systems engineer that knows chef and apply devops ideas - feel free to contact me and we'll find out together - how to make your products awesome. If you are looking for a team of developers - contact me anyway - I can build a great team of world-class developers for you in Ukraine - one of the most advanced software development markets in the world. Things that are in my area of interest are: DevOps, Ruby, Sinatra, Rails, AWS, EC2, Chef, Node.JS, Coffee-Script, MySQL, Redis, MongoDB, Heroku, capistrano

    $60.00 /hr
    723 hours
    4.98
  10. Frank Hock

    Frank Hock

    Ruby on Rails Developer: Client Satisfaction Guaranteed

    United States - Last active: 10/02/2014 - Tests: 3 - Portfolio: 2

    So why do we write code? We write code to solve problems. I started my web development career in 2009 as a Wordpress developer. I since then have focused primarily on Ruby on Rails. I have had the privilege to work on a multitude of projects ranging from cloud based law firm management to open source CMS. I'm confident in calling myself a full-stack developer. I'm able to take your idea from a thought inside your head to a fully functional application. I have experience working with many APIs including: Stripe, Twilio, Paypal, Phaxio, Twitter, Facebook and others. I'm capable of working well with other developers or by myself.

    Groups: LoginRadius

    $55.00 /hr
    475 hours
    5.00