Top Upwork Freelancers

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  1. Vlad Mikhailov

    Vlad Mikhailov

    Ruby/Rails Sotware Engineer

    Russia - Last active: 16 hours ago - Tests: 4

    I am a senior software engineer with over 7 years of experience. I love to work with ruby/rails and whole stuck. I really like to do projects that rely on good API design, complex client/server interaction and provide real value to their customers. My key skills: * Ruby, Rails 3/4, Sinatra/Padrino, Adhearsion, Minitest, Rspec, Capybara * PostgreSQL, MySQL, NoSQL ( MongoDB, Redis, Memcached) * RabbitMQ, Beanstalkd, Sidekiq, Eventmachine * Javascript, Coffescript, HAML/SLIM, HTML5, CSS, SASS * TDD, BDD, Continous Integration (TeamCity), Nant, Rake, Git, SVN, Capybara, Nginx, * DevOps, Chef, Ansible, Docker. * Amazon AWS (EC2, RDS, S3, ELB), Heroku, Engine Yard, Rackspace I also have experience in UX, product and project management (was a head of development with 15 developers and two QA engineers in a my team)

    Groups: Coding Champs, Engine Yard Ruby on Rails Professionals Network

    $50.00 /hr
    2,716 hours
    4.87
  2. Oscar Rendon

    Oscar Rendon

    Ruby, Rails, Js and FP

    Colombia - Last active: 8 days ago - 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

    Groups: Engine Yard Ruby on Rails Professionals Network

    $50.00 /hr
    260 hours
    5.00
  3. Yuriy O.

    Yuriy O. Agency Contractor

    Senior Ruby on Rails Developer / backbone.js / Project Manager

    Ukraine - Last active: 16 hours ago - Tests: 10 - Portfolio: 12

    I can offer 10 years of experience as web developer and consultant with wide range of skills - from Rails / JavaScript programming and server administration to project management and UI design. In my work I strive for high quality, simplicity and maintainability. I do my best to deliver more than you expect.

    Groups: Engine Yard Ruby on Rails Professionals Network, Twilio

    Associated with: Kodo Labs Agency

    $50.00 /hr
    3,160 hours
    4.76
  4. muh syaiful sabril

    muh syaiful sabril Agency Contractor

    Sr. Ruby on Rails & DB developer with cloud infrastructure

    Indonesia - Last active: 28 days ago - Tests: 11 - Portfolio: 14

    I am a full stack Ruby on Rails developer and also a team leader. You want to build an awesome application with high quality standard? you came to the right person. I have experiences with web application development from scratch to production. You want to build a MVP of your idea? Give me a week trial and i will help you to build it. You want for help to fix your existing application that failed to launch to a product or left by your previous developer? I am here to help you. Database experiences: - MySQL, PostgreSQL, Mongodb Deployment infrastructure experiences: - Heroku, Amazon Web Service (EC2, Elastic Beanstalk), Rackspace, Linode, Engineyard. Payment process experiences: - Authorize.net, Stripe, Paypal But to be honest i don't have the shining badge as a web designer, but my standard is Twitter Bootstrap or Zurb Foundation, you can bring your own design or designer, or i will find it for you. Thank you for visiting my profile, just contact me even for just say hi or want to discuss about your project or your idea. I hope it worth your time :-)

    Groups: Engine Yard Ruby on Rails Professionals Network

    Associated with: Ellison Digital Industries, Sabril Agency, SOLIT

    $70.00 /hr
    9,118 hours
    4.92
  5. Niels Ganser

    Niels Ganser

    German Engineered Ruby on Rails Solutions & Reliable Project Managment

    Germany - Last active: 5 days ago - Tests: 7 - Portfolio: 3

    Hi, I'm Niels, a seasoned software engineer based in Germany mostly working on web applications of all kinds using Ruby on Rails (3 and 4), (My)SQL, mongodb, redis, HTML(5), CSS and JavaScript in an agile manner. I also set up and maintain Linux servers. Several applications that I architected, implemented and maintain are in active production use. Please see my portfolio for details. I have years of experience as a senior developer – working solo, in co-located teams as well as in distributed teams – and hold a postgraduate diploma in Management of Software Projects. My greatest prides are proactiveness, reliability and good communication Please note that I do *not* do graphic design. Not for a lack of interest, but for an unfortunate lack of artistic talent. Sorry! :)

    Groups: Engine Yard Ruby on Rails Professionals Network

    $128.50 /hr
    5,370 hours
    4.97
  6. Gordon D.

    Gordon D.

    Leader of Wide Teams

    South Korea - Last active: 16 hours ago - Tests: 4 - Portfolio: 9

    I'm passionate about software craftsmanship and adapting agile practices for distributed teams. I love working with smart people to solve hard problems. My goal for the last few years has been to build a team culture in the model of Hashrocket and PivotalLabs but entirely distributed. For the last 5 years I've been leading very wide (globally distributed) teams helping them to active as close to co-located efficiency as possible. Currently I think we can get about %90 of the efficiency that could be achieved with a co-located team and that missing %10 is more than made up for by the other advantages of having a wide team. I've also been working with ruby (and rails) for almost 10 years now i.e. since rails was 1.0. In my recent projects I was the lead developer on the teams that built pawlinks.com, plateology.com, subout.com and textgen.com. Some more information about me: http://www.linkedin.com/in/gordonduquesnay https://twitter.com/gduquesnay https://github.com/gduquesnay

    Groups: Engine Yard Ruby on Rails Professionals Network

    $122.22 /hr
    5,470 hours
    4.70
  7. Irfan Ahmed

    Irfan Ahmed

    Senior Full Stack Ruby on Rails Developer

    Bangladesh - Last active: 10 days ago - Tests: 5 - Portfolio: 7

    Over last 6 years, I have developed wide ranges of web application and many long term relationship with my clients. I am passionate about Ruby. I am self organized, reliable and used to work with responsibilities. I highly give values to clean codes and well tested groundworks for the codebase. I can work with almost any ruby library. I have knowledges of all programming patterns, anti patterns. I have build many gems for my clients so far. I am expert at deployments complex projects. I can ensure a fail safe deployment and zero down time. Making deployment automation is my favorite job. Apart from my programmer role, I have experiences in project management, team leading, team building. I have played roles many times in developing software architecture as well. I also have some little contributions to devise gem, punch bag and more. I am looking forward in building a long term relationship with my high professional services.

    Groups: Application Developers Alliance, Engine Yard Ruby on Rails Professionals Network

    $27.00 /hr
    1,767 hours
    4.88
  8. Martin U.

    Martin U.

    Expert Ruby on Rails Developer

    Poland - Last active: 16 hours ago - Tests: 12 - Portfolio: 9

    If you're looking for the cheapest - someone who'll cut corners to save a few minutes' work - you'd better look elsewhere. Types of systems I've been working on (most were covered by NDAs): - ERP systems (for a production line in a factory) - advertising platforms (using AdWords and AdSense) - banking systems ( I learned a lot about accountancy, security and encryption) - MLM platforms - social networks - meta-data distribution platforms - gamification platforms

    Groups: Engine Yard Ruby on Rails Professionals Network

    $60.00 /hr
    6,057 hours
    4.97
  9. Yana agun S.

    Yana agun S.

    Ruby On Rails and PHP Developer with 4 years of Experience

    Indonesia - Last active: 2 days ago - Tests: 3 - Portfolio: 1

    4 Years Experience in Web Developemnt • Backend: Ruby, Ruby on Rails, PHP • Ecommerce: Spree, Stripe, Paypal • Authetication: Devise • Administration: ActiveAdmin • Frontend: HAML, Slim, SASS, CoffeScript, Bootstrap, JQuery • APIs: geocoding, google services, social networks, XML/XSLT, CSV • Testing: Rspec, Rcov • Text search: Elastic Search • Databases: MySQL, PostgreSQL • DevOps : Vagrant • Operation systems: Ubuntu • Version control: git Short Talk I'm passionate Ruby on Rails developer. Able to learn new web technologies. Experienced in creating RESTfull API. Sometime i work for fun, i create free website for you if you can gave a good chalenge that catch my attention. I sometime create automation script for my self in ruby offcourse. It solve my everyday problem. I hope it can also solve your business problem. Ror Developer, Web Developer, Ruby on Rails Developer. I looking to work with your awesome team. Come and hire me, maybe i am the person you are looking for. Good Luck with your project.

    Groups: Engine Yard Ruby on Rails Professionals Network

    $26.67 /hr
    133 hours
    4.87
  10. Ivan Povalyukhin

    Ivan Povalyukhin

    Ruby, Rails, Node.js, JavaScript, MongoDB, HTML5

    United States - Last active: 6 days ago - Tests: 6 - Portfolio: 4

    http://ipoval.com / Linux, Ruby & JavaScript enthusiast I enjoy programming and look at the modern Web and Mobile technologies through the eyes of a software engineer. That being said, clean design and code, consistency and best practices play the major role in my work. I have been a full-stack web-developer since 2008 and my goal is to develop myself as a passionate programmer and generalist.

    Groups: Engine Yard Ruby on Rails Professionals Network

    $48.00 /hr
    283 hours
    5.00