Ruby Developer Freelancers

Showing 7,997 freelancers

Ruby Developer Freelancers

Showing 7,997 freelancers

  • Programmer / Developer

    I have been working in Ruby on Rails for more then four years. Actually I'm working toward PhD degree in Computer Science (polynomial interpolation) and Philosophy (logic). My publications: Kozera, R., Noakes, L., Szmielew, P.: Length Estimation for Exponential … more

    I have been working in Ruby on Rails for more then four years. Actually I'm working toward PhD degree in Computer Science (polynomial interpolation) and Philosophy (logic). My publications: Kozera, R., Noakes, L., Szmielew, P.: Length Estimation for Exponential Parameterization and ε-Uniform Samplings. In: Huang F., Sugimoto A. (eds.) PSIVT 2013 Workshops. LNCS, vol. 8334, pp. 33–46. Springer-Verlag (2014) Kozera, R., Noakes, L., Szmielew, P.: Trajectory estimation for Exponential Parameterization and Different Samplings. In: Saeed, K., Chaki, R., Cortesi, A., Wierzchoń, S. (eds.) CISIM 2013. LNCS, vol. 8104, pp. 430–441. Springer-Verlag (2013) I'm also teacher at Coder's Lab where I teach Ruby and Rails and in Warsaw University of Life Sciences, where I teach: - history of science - logic In past I've teached: - computer networks - security of computer networks - logic (at Warsaw University) I currently don't have much free time - so I'm actually available for only few hours per week (more like consultant then developer). Skills: Ruby on Rails 2/3/4 Ruby 1.8/1.9/2.0 (a lot of gems) Nginx / Apache + Passenger configuration Balsamiq mockups usage Mathematica Feel free to look at my github account: https://github.com/esse or my RoR website: http://roflcopter.pl  less

    ruby-on-rails javascript java c# .net-framework wire-framing ui-design interaction-design agile-software-development project-management c 00 more less
    • $55.56 HOURLY RATE
    • 5.0
    • 278 HOURS
    • POLAND
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 4 TESTS
  • Expert in Ruby / Rails / jQuery / ExtJS / MySQL / Facebook / Linux

    With a lot of experience on HTML, DHTML, Javascripts/Prototype/jQuery, Ruby/Ruby on Rails, PHP, MySQL and administrative skills for various platform Windows, Linux, Mac, I'm looking for chances to work on any projects as build site from … more

    With a lot of experience on HTML, DHTML, Javascripts/Prototype/jQuery, Ruby/Ruby on Rails, PHP, MySQL and administrative skills for various platform Windows, Linux, Mac, I'm looking for chances to work on any projects as build site from ground up, develop more features, maintain, administrate servers/site.  less

    ruby ruby-on-rails mysql jquery extjs 00 more less
    • $50.00 HOURLY RATE
    • 4.9
    • 2409 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 8 TESTS
    GROUPS:
  • Ruby on Rails / Backbone.js / jQuery / Cloud / SQL / PHP | Russia

    Over the last 5 years, I have developed a wide range of websites using HTML, PHP, Ruby on Rails and MySQL including sites for startup companies, e-commerce shops and small businesses. My core competency lies in complete end-end management of … more

    Over the last 5 years, I have developed a wide range of websites using HTML, PHP, Ruby on Rails and MySQL including sites for startup companies, e-commerce shops and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have good experience in the following areas: SQL, Ajax, OOP, and software design and testing.  less

    ruby-on-rails mysql ruby javascript jquery html css ajax mongodb html5 nosql php 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 78 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 7 TESTS
    ASSOCIATED WITH:
  • RubyOnRails Full Stack Developer

    Programming since 1983, I have written code in multiple languages and, developed networking solutions. I currently offer Full-Stack Development of Web Solutions and Rest-APIs on the Ruby on Rails framework - from the Database to a Responsive front-end. I have also … more

    Programming since 1983, I have written code in multiple languages and, developed networking solutions. I currently offer Full-Stack Development of Web Solutions and Rest-APIs on the Ruby on Rails framework - from the Database to a Responsive front-end. I have also developed user-interfaces on the Android platform, utilizing a Rails-API back-end. My ability to provide web-solutions are enhanced by a familiarity with core-languages, ruby-gems, and other tools (below). My local working-environment and preferred OS for remote-servers is Linux, within which I have experience with installation (desktop and server), command-line, scheduling / batch-jobs, firewalls, etc. I am not a Graphic Designer (artist) or PHP back-end programmer, though I frequently produce front-end HTML/CSS code for Adobe-PSD layouts, delivering responsive websites for varied frameworks. Education: I completed a BS (summa-cum-laude) and MS in Computer Science (4.0 GPA @ U of Illinois). Specific expertise and experience includes: Boostrap, Parallax, Responsive Front-End CSS/HTML, Heroku, Devise, Segment.io Analytics Integration, SMS (Nexmo), PDF (Prawn), ActionMailer (SendGrid), Pagination (Kaminari), S3 Storage (Paperclip), ImageMagick / RMagick, Jcrop, and Postgresql. I am available, immediately, for long or short-term projects. Whatever the challenge, I WILL find a way to make it work.  less

    ruby-on-rails html css twitter-bootstrap javascript android-app-development api-development awk postgresql ajax 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 428 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Big Data/Machine Learning/Data Analysis/Context Awareness Service R&D

    After the last 8 years I`ve got a baggage with a technical skills and experience in web development from front-end to back-end using Ruby, Ruby on Rails, Elasticsearch, Resque, C#, ASP .NET, MSSQL, Mongodb, JavaScript, etc. Last 4 years … more

    After the last 8 years I`ve got a baggage with a technical skills and experience in web development from front-end to back-end using Ruby, Ruby on Rails, Elasticsearch, Resque, C#, ASP .NET, MSSQL, Mongodb, JavaScript, etc. Last 4 years I am working professionally (today: Samsung Electronics Korea) on big data analysis systems related with context awareness and user data. I might fullfill a full range of development goals including system architecture, algorithm research, machine learning methods research, further applications development as well as coding.  less

    ruby ruby-on-rails mongodb redis c# wcf javascript jquery jquery-mobile lucene-search ajax git svn atlassian-jira redmine html css asp.net asp.net-mvc oop 00 more less
    • $35.00 HOURLY RATE
    • 5.0
    • 57 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
    ASSOCIATED WITH:
  • Ruby on Rails Developer

    Over the last 11 years I have developed sites using Ruby, Perl, PHP, JavaScript, AJAX, MySQL and PostgreSQL. As of today, Ruby on Rails is my favorite framework for developing web applications. My goal is to work side by side with my customers to help them achieve their goals.

    ruby-on-rails ruby rspec cucumber jquery javascript ajax mysql postgresql database-modeling php perl project-management git unix-shell css html 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 8251 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
    GROUPS:
    ASSOCIATED WITH:
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