Rails Freelancers

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  1. Chris Smith

    Chris Smith

    Ruby on Rails developer

    United States - Last active: 07/07/2013 - Tests: 2 - Portfolio: 4

    I enjoy developing web applications and using my experience to provide a great result. My skills include: - Ruby, jRuby, C++ - Rails 3/4 - Python 2/3, Flask apps - MySQL, PostgreSQL, Elasticsearch, Logstash, Kibana - Javascript, jQuery, AJAX, CSS, Twitter Bootstrap - Git and Github for source control - Mac OS X and Linux - Heroku, Linode, and Digital Ocean for application deployment - open source projects on Github at https://github.com/cleesmith?tab=repositories

    $44.44 /hr
    6,906 hours
    3.84
  2. Grzegorz Biesiadecki

    Grzegorz Biesiadecki

    Front-end/Rails Developer

    United States - Last active: 10/06/2012 - Tests: 5 - Portfolio: 7

    After 6 years of .Net enterprise systems development I have moved my interests to Ruby on Rails and Front-End. For last 2 years I'm successfully working with RoR/Javascript. Right now I'm taking advantage of previous experiences and implementing best programming practices like design patterns, SOLID principles, and TDD. I have good eye for design and as a Front-end developer I focus on providing best UX.

    $45.00 /hr
    2,182 hours
    4.95
  3. Mike De La Loza

    Mike De La Loza

    Rails/Ruby/Python/C++/SQL/Ajax/Javascript/Backbone.js/CSS

    United States - Last active: 5 hours ago - Tests: 4 - Portfolio: 11

    Since deciding to work alone in 2010, I have never abandoned a client. I don't give estimates nor abide by deadlines. My development machine has 32GB of RAM, a 500GB SSD hard drive, two 23-inch monitors, and a Logitech webcam.

    $70.00 /hr
    5,131 hours
    4.83
  4. Kevin P.

    Kevin P.

    Agile, XP, TDD, Ruby, Rails Developer, C#, ASP.NET, ASP.NET MVC

    United States - Last active: 1 month ago - Tests: 3

    Over the last 7 years, I have developed websites using C#/.NET, ASP.NET, ASP.NET MVC, Ruby, MySQL, MS SQL, Ajax, jQuery based on Agile methodologies. My core competency lies in website development from a new standpoint or taking an existing solution and extending it's functionality. I am seeking opportunities that would provide either of these scenarios.

    $42.22 /hr
    1,457 hours
    4.31
  5. Derek Harrington

    Derek Harrington

    Ruby on Rails Developer

    United States - Last active: 5 days ago - Tests: 2 - Portfolio: 8

    I am a talented and experienced full-stack web application developer. I work almost exclusively in Ruby on Rails. I love developing applications “the Rails way”. I appreciate the brilliance of the Rails architecture and enjoy using it to build world-class applications. I’ve created a number of complex systems using Rails including e-commerce sites, inventory management systems, scheduling systems, forum applications, internal organizational systems, and order fulfillment systems. My rails knowledge is also augmented with intimate knowledge of HTML5, CSS3, Sass, SQL, and jQuery.

    $120.00 /hr
    1,210 hours
    4.86
  6. Drew Ulmer

    Drew Ulmer Agency Contractor

    [Upwork Top 5 Percent] Professional Rails Developer

    United States - Last active: 03/20/2014 - Tests: 4 - Portfolio: 6

    When you hire me, you're hiring a top 5% Upworker with multiple successful projects and universally happy clients. I am an expert Ruby and Rails developer with more than 6 years of successful projects with Ruby on Rails versions 2.3 through 4.x. I enjoy working on everything from ecommerce to line of business applications and I specialize in identifying and fixing security issues. I can occasionally be found on the #rubyonrails freenode IRC channel and my github can be found under the username latortuga. I have contributions to major open source projects including Ruby on Rails, Devise, ActiveAdmin, cache_digests, warden, spree, and zeus. I am generally interested in Ruby or Rails development proposals, provided they include information about the actual project and not merely a list of skills.

    Groups: Twilio

    Associated with: Unabridged Software

    $150.00 /hr
    1,096 hours
    4.98
  7. Dave Tapley

    Dave Tapley

    Experienced and versatile graduate developer

    United States - Last active: 5 hours ago - Tests: 8 - Portfolio: 8

    Since completing my masters at university in 2007 I have worked for multiple years both in full time in office, and full/part time on oDesk. Notable professional experience, in reverse chronological order: * Chronos, a personal time management app for iOS/Android, with companion website: http://getchronos.com/. * AuthorityLabs, a SEO rank tracking website; using Ruby/Rails, MySQL, Mongo, jQuery. * Helping you succeed LLC, a financial services application; written in Haskell using the wxWidget library. * Codemasters, working on the award winning multi-platform Formula 1 game series; entirely C++. * Last.fm, a music website, with over 40 million active users; working on back-end systems in Java, Tomcat and Hadoop. These positions allowed me to gain a range of complementary skills in the programming field, with a focus on code quality and performance. Academically I have a first class degree in computer science and a masters degree in computational intelligence and robotics, the latter of which I received funding for from the EPSRC. I am have been passionate about computers since a young age, as reflected by my academic and professional path. I have been involved in countless personal projects, enjoy finding solutions to challenges, and am always eager to try new approaches to computational problems.

    $80.00 /hr
    2,981 hours
    4.99
  8. Ben Allfree

    Ben Allfree

    I turn your ideas into working software.

    United States - Last active: 1 day ago - Tests: 7 - Portfolio: 28

    *** Staying Lean - my free eBook that teaches you how to build your tech empire without big budgets. http://www.benallfree.com/ebook *** My dad knew I was a programmer before I did. He bought me that first book when I was about 10. That was 28 years ago. I am a programmer with major project experience in every major language, platform, and operating system. I love working with small companies and startups. Whether you need someone to lead your team, program into the wee hours of the night, or just need someone to talk to, I can help. As your next Virtual CTO or chief architect, I can help translate your ideas into working software. As a full stack programmer, I provide frontend programming, backend programming, mobile programming, and infrastructure buildout. Whether solo or as your team lead, I bring years and depth of experience to your business. I tell people that I am a thinking programmer. Not a "ninja", or a "rock star", or someone who "bangs out code". I am not a "Ruby guy" or a "PHP guy", or an "Agile guy" or a "Waterfall guy". I am just your thinking, capable, competent programmer who sees the world in full color and adapts to the situation. Someone who sits down with you and talks plainly about your goals and what it will take to reach them. If I am the right fit, I say so. If I am not the right person, I tell you that too. Building a technology business requires more than just programming skills. Knowing how to put together servers, infrastructure, networking, security, partner integrations, prototyping, and beta testing are factors which heavily influence your success. So as well as being your programmer, I am also your systems architect and technology advocate. Embedded systems projects are flooding Kickstarter, and I love it. If you need to create and program physical devices using Raspberry Pi, BeagleBone, Arduino, or chipsets from Intel, ARM, and Motorola, I can offer hands-on help and experience. What about video games? Mobile, desktop, or console? I have experience with many of the top game engines including Unity, Unreal, Cry, Game Maker, and many other game development stacks including retro gaming. Or let's create your own game engine and show them all how it's done :) It has been my privilege to work with top brands like Sony, Nestle, NBC, Polaroid, Texas Instruments, Microsoft, and Adobe. As well, I have worked with many promising startups and am honored to be an oDesk Gold Member, an oDesk All-Star, and oDesk Top Rated Freelancer, and an oDesk Verified Web Developer. I have over 2,500 hours clocked on oDesk, a 5-star rating, and am 99% recommended by over 50 clients. Thank you to oDesk and all my clients who helped make this happen for me, it is a HUGE honor. Building hardware and software through oDesk is my full time occupation. I continually learn new ways and approaches to help you avoid costly mistakes and rework in your next project. If you are considering a new venture, a major addition to your existing software, or just need help crossing the finish line, you may be interested in my free ebook titled "Staying Lean". It teaches you how to build your tech startup *without* big budgets and venture capital. The book is free, all I ask in return is the privilege of keeping in touch with you. http://www.benallfree.com/ebook What do I love right now? What should you be looking at to build your next project? Glad you asked! My clients and I love Laravel, Ruby on Rails (RoR), Ionic, Django, AngularJS, Bootstrap, mobile hybrid apps, iOS, Android, PHP, Symfony, jQuery, JavaScript, HTML, mySQL, video, Facebook API, Raspberry Pi, BeagleBone, Andruino, Twitter API, Single Page Applications (SPA), Auth0 (Hosted Identity Management), Composer, Bower, Node and NodeJS, grunt, SASS or SCSS, and much more!

    $50.00 /hr
    2,563 hours
    4.99
  9. David J.

    David J. Agency Contractor

    ** Skilled professional software engineer (cs & s/w eng degrees +PhD)

    United States - Last active: 03/16/2011 - Tests: 6 - Portfolio: 3

    With 17 years experience in software engineering and development, I've worked on a diverse set of projects. I consider myself a life-long learner and have never hesitated to dive into becoming an expert in new domains. I've worked on projects in academia, for businesses, defense contractors, government laboratores in several countries and also many of my own varied projects. As of May 2013 - I'm available 20hrs/wk (possibly up-to 30). Some areas of expertise include: - Distributed systems & architecting for the Cloud - Web Applications (Ruby & Rails, LAMP - Linux/Apache/MySQL/PHP); AJAX - jQuery/Javascript; web-service APIs (XMLRPC/JSONRPC/REST) - Relational & Object Database Design - Simulation: physics simulation, 3D graphics (OpenGL, OpenSceneGraph) - C++ desktop applications (UI, libraries, components) - Bioinformatics (Biolab Matlab-like bio environment - Java/C#/.NET/Python) - Networking (protocol design; wireless; TCP/IP; HTTP and related technologies) - Embedded systems (hardware system design, construction & programming) - Operating System design and implementation - Language design, interpreter and compiler construction - Human Computer Interaction (HCI) - user interface design & implementation (X11, Interviews/Fresco, Qt, Swing, AWT, Winforms, GTK+) - Robotics: AI, Vision, Path planning, Inverse Kinematics - Hardware: Sensors, VHDL, FPGAs Most of development has historically been in C++, but in recent times I've favoured C#, Java or Ruby. For web applications and services I prefer Ruby but also have experience in PHP. Over the years I've used many languages and can pick up new languages and their library frameworks quickly. I've also designed languages (upto the complexity of C++) and written interpreters and optimizing compilers (so I've not met a language feature I'm not well versed with). I'm a good communicator, proficient at technical writing and have published many papers in peer reviewed journals and other publications. I'm most interested in working on web sites/services, particularly where complex distributed systems involving interacting databases are concerned or in the area of virtual reality, 3D graphics and simulation systems (including cutting-edge 3D game platforms). However, in general I'll find anything challenging interesting to work on!

    Associated with: EgoMachines Agency

    $112.00 /hr
    1,064 hours
    5.00
  10. Raymond Doran

    Raymond Doran

    Senior Software Consultant

    United States - Last active: 5 days ago - Tests: 2

    I am an experienced, motivated and detailed Software Architect / Engineer with a complete end-to-end understanding of the software development process. Over 17 years of professional experience in software development, technology support, and graphic arts. Software development skills include Rich Internet Applications and Web 2.0, Object Oriented Application Design (OOAD), including the use of the Unified Modeling Language (UML), SQL, JAVA (J2EE, Hibernate, Spring, Struts), JSP, ActionScript, PHP, EJB, C++, HTML, XML, BlueMartini, Design Patterns, and managing small development teams. The past 15 years of my career have been mainly focused on the Java family of technologies with a strong emphasis on distributed applications over the internet or corporate intranet. I have also spent the last 6 years with Flex and Actionscript front ends. The ability to speak comfortably in large groups, one on one with clients, or mentoring peers is a skill that I have been able to acquire as well.

    $105.56 /hr
    1,286 hours
    0.00