Rails Freelancers

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  1. Derek Berner

    Derek Berner

    Java Developer

    United States - Last active: 7 days ago - Tests: 8

    I have a B.S. in Computer Science with a minor in Computer Engineering from Cornell University. I have over 10 years of professional software development experience, focusing primarily on Java technologies with a lesser focus on Ruby on Rails. I am comfortable developing for a wide range of target platforms, including web, mobile, desktop, systems, shell scripts, and batch jobs. Much of my work has included performance analysis and tuning, and I have successfully improved latency and throughput in struggling systems by factors of 10 to 100, while reducing resource load and improving horizontal scalability. I have also helped improve development processes and tools, reducing build times and developer idle time. I adhere to test-driven development principles and strive for simple, repeatable design methodologies.

    $33.33 /hr
    10 hours
  2. Egor Vlasenko

    Egor Vlasenko

    Web developer

    Russia - Last active: 13 days ago - Tests: 5 - Portfolio: 3

    For the last 5 years I've been working with several teams, creating web applications and services with JavaScript frontend, PHP, NodeJS or Ruby-on-Rails backend and MySQL/MongoDB databases. Last 2 years I'm working with Sweden company Innometrics, where I code using ExtJS (most of time), PHP, NodeJS, and write tests with Mocha/SinonJS. In addition in Innometrics I perform tasks of product manager including analyzing UI and improving it, discussing design and functionality of product, writing specs for developers and designers and supporting the development process. Understanding web development from both: design and code parts helps me a lot at this position. I'm looking for a possibility to build a web service or a startup project from the ground, as project manager and/or as web developer. Some technologies I also have experience in: - Heroku, AWS SDK for Node - Mocking with HTML/CSS/jQuery - Sass/Scss, Haml, CoffeScript - WordPress CMS - Flash, ActionScript 2/3, Away 3D - Adobe Photoshop

    $15.00 /hr
    14 hours
  3. Leo A.

    Leo A.

    Senior Full Stack Specialist

    Canada - Last active: 6 days ago - Tests: 4

    Hello Over the last 8 years, I have developed a wide range of websites using Wordpress, PHP, HTML, CSS, jQuery, javascript, Bootstrap and MySQL including sites for startup companies, small and large 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 some experience in the following areas: - Ruby on Rails, Coffeescript, SASS, HAML, SLIM - jQuery frameworks, - Git, Heorku, Bitbucket - Responsive Designing, PSD to Wordpress, - Wordpress Multi-sites(WPMU), - Wordpress Multi-languages(WPML) configuration, - Real Estate Site Management(IDX), - Optimizing and Speed Up Web sites, - ACF, CPT, Mailchimp, Weebly and Wordpress Custom Theme Development. I like to manage my projects utilizing my strong communication, organizational and technical skills to deliver on time and on budget. I look forward to discussing any upcoming development needs you may have. Many thanks Leo A.

    $50.00 /hr
    16 hours
  4. Vera V.

    Vera V.

    Web Developer

    Kyrgyzstan - Last active: 1 day ago - Tests: 1

    Hello! My goal is to implement interesting projects, considering all the wishes of the customer as soon as possible. I have over 5 years of web and database experience. I have developed sites using PHP, Zend Framework, MySQL, HTML, CSS and JQuery technologies. Also, I have experience in SmartJobBoard platform customization. Now I want to realize my abilities in projects concerned with processing large amounts of data related to the use Sphinx, Elastic Search etc. I really want to participate in projects that are developed using the Ruby-on-Rails, too

    $12.00 /hr
    55 hours
  5. Jaz S.

    Jaz S.

    Full-Stack Developer / Wordpress & Woocommerce Expert

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

    I have built a wide range products and interfaces for dozens of small to large consumer driven businesses. I love working with startup companies from the ground up to develop their digital (and physical) products that attract consumers and convert them to customers. I have over 5 years hands on interactive agency experience to build a great user experience and a strong product. I handle everything from planning and design to development and deployment. + End-to-end development + Interface design, branding, photoshop, illustrator + Front-end development, responsive interfaces, HTML5, CSS3, SASS, Javascript, Bootstrap + Back-end development, PHP, Rails, custom theme development, plugin development, API integrations + e-Commerce: Woocommerce, OpenCart, Shopify + PHP Frameworks: CodeIgniter, Laravel + Code/version management: GIT, Github + And more, just ask! I can get anything done. I assure 100% job satisfaction, great communication, and high availability for all projects. I'm on Skype chat and emails 24/7, phone calls can be scheduled anytime. Please see my 20+ 5 star ratings.

    $33.33 /hr
    114 hours
  6. Sven N.

    Sven N.

    Dedicated iOS8/7/iPhone6/iPad,Android Expert

    Sweden - Last active: 9 days ago - Tests: 5

    I want to become a top oDesker within 1 year. I have 5 years experiences in iOS programming, and also have 3 years experiences in Android programming. I'm a dedicated mobile expert, and hope long-term relationship. My mobile devices: iPhone6, iPhone5, iPod Touch 5, iPod Touch 4 SumSung Galaxy GTab3, Google Nexus 6 My skill set: Native : iOS, Android, Windows, Black Berry app/game development Hybrid : PhoneGap, Xamarin, Titanium. Device Kit : Bluetooth, iBeacon, Credit Card Reader, MIDI Cloud backend : Parse.com, Amazon S3, Twillio Chat and Message Engine : XMPP, Jabber, OpenFire, Erlang Video/audio/image processing : OpenCV, GPU Image, CoreAudio, EXAudio, Pitch Control, Bass, AVFoundation Video/audio streaming, codec : H264, H323, MPEG-4 Database : MySQL, SQLite, Oracle, ODBC Social : Facebook, Twitter, Linkedin, Instagram, Youtube Game engine : cocos2d, box2d, OpenGL, Corona, Unity 3D Game Center, In-app purchase, RPG server Ads : Chartboost, Revmob, Upsight, Adcolony, Applovin, Applift, Appnext, Mopub, Flurry, Admob, Google Analytics, Tapjoy Github, Bitbucket, git Online Payment Gateway : Paypal, Stripe Mobile Game Centre : Slot machine, Poker, Chess, Arcade

    Groups: Application Developers Alliance

    $55.56 /hr
    245 hours
  7. Darrin O.

    Darrin O.

    Technology Consultant

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

    I have over 20 years of experience providing full stack solutions for all my clients' needs. I not only dig down into the code, but also design and architect robust solutions at the highest levels of abstraction. And I'll be happy to discuss it all in plain English for those who aren't interested in a lot of techno-jargon! My deepest experience is with C on Unix systems, and these days preferably Objective-C (and/or Swift) on Mac OS X and iOS. I do also have a lot of experience with Java for Android apps as well as for other back-end server software (including offshoots like Groovy). I'm also happy to use Ruby with or without Rails, Perl in reasonable doses, and even PHP as necessary. I generally run Linux as a server OS. If something else works better for you, I'd love to learn it!

    $100.00 /hr
    37 hours
  8. Chirag J.

    Chirag J.

    Expert Developer of iPhone, iPad and Swift Apps updated to iOS 8

    India - Last active: 26 days ago - Tests: 4 - Portfolio: 3

    I have 4+ years of experience in mobile and mac-os-x software development. Expertise in software development, as technical team leader and project management. I have extensive experience in Social Networks, Minimum Viable Products, prototypes and start-ups. Excels in the following areas: - Native Mobile Development (iOS 8, iOS 7, Swift, Objective-C, Xcode) - MAC Plugins Development - MAC Applications - Mapping, GPS, Location Tracking - Server-side applications development - Database(SQLServer, MySQL, SQLite) - Web Development(PHP, RESTful APIs ) - Web Services (PARSE, Restler, Cake php, CodeIgniter) - XML, JSON - Trello, Basecamp, JIRA, ACTIVECOLLAB, SifterApp - SVN, Github, BitBucket After working on 15+ projects within a time span of 3+ years on iOS and Mac Applications, as a Senior iOS developer, I can assure apps with great quality and features. Clients satisfaction is the priority for every developer but the design and quality of code is equally important. I take pride in doing my work.

    $40.00 /hr
    444 hours
  9. Nguyen duy T.

    Nguyen duy T.

    Magento Certified Developer Plus | PHP Technical/Team leader | Ruby

    Vietnam - Last active: 3 days ago - Tests: 4 - Portfolio: 9

    I have developed a wide range of websites using HMTL, XHTML, PHP, and MySQL including sites for startup companies 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 am also seeking opportunities to customize your websites from exist product like Magento, Wordpress or website built from scratch using framework like CodeIgniter, Symfony2 or RubyOnRails I also have many competitive experiences in the following areas: Design patterns, SQL, Ajax, Javascript, OOP, VCS, CSS, Linux & LAMP stack and software design and testing. My website : http://invisiblezero.net/ My Magento certified developer plus : http://www.magentocommerce.com/certification/directory/dev/200621/ My LinkedIn page : http://lnkd.in/b5RQmQt

    Groups: Magento Certified Developers

    $33.33 /hr
    266 hours
  10. Yuri M.

    Yuri M.

    Java/C++/DB Developer

    Ukraine - Last active: 7 days ago - Tests: 11 - Portfolio: 6

    7+ years experience in various projects. In my development practice I've worked on both desktop and web-projects where I've used different libraries and frameworks. I have experience in such areas: * as Java developer: Swing, SwingX, EJB 3, Struts, Spring, GWT, Hibernate, JDBC, JSP, XStream, Jetty, JUnit * as DB developer I've worked with MySQL, Firebird, MS SQL Server, PostgreSQL, H2. * as C++ developer: boost library, ability to write cross-platform code, MFC, Qt * worked with applications for project designing: Rational Rose, Visual UML, StarUML, Microsoft Visio. Good understanding OOP and data-store concepts. Also I have some experience in following areas: Microsoft .NET, Ruby on Rails, PHP and Python.

    $30.00 /hr
    4,037 hours