Ruby Ruby On Rails Freelancers

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Alexey S.

Alexey S. Agency Contractor

Ruby on Rails Developer

Russia - Tests: 5

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.

Groups: Engine Yard Ruby on Rails Professionals Network

$33.33 /hr
9,382 hours

Maciej Zubala

Maciej Zubala Agency Contractor

Senior Ruby On Rails developer

Poland - Tests: 4 - Portfolio: 6

Software development is not only my profession but also my greatest passion and hobby. This is why I spend majority of my free time improving my programming skills, learning new concepts, technologies, languages and tools. I get the greatest satisfaction when products I develop are released to the world and people start using it - that makes me want to spend more time at work. When not in front of my monitor, I'm probably taking care of my daughter or doing some sports (tennis and swimming most of the time).

Groups: Upwork Verified Developers

$38.89 /hr
5,784 hours

Marcin Szczepanski

Marcin Szczepanski Agency Contractor

Senior Ruby on Rails developer

Poland - Tests: 9 - Portfolio: 10

I have been developing web applications as a hobby, before it became my profession. I am a young developer but with solid experience already. I was involved in the creation of a number of interesting projects/applications. I am constantly broadening the scope of my skills and techniques. I like working in team and I'm always willing to share knowledge.

$32.00 /hr
5,177 hours

Zbigniew Pieslak

Zbigniew Pieslak

Expert Ruby on Rails & Javascript Web Developer

Poland - Tests: 8 - Portfolio: 8

Over the last 7 years I have acted as a web developer and a Ruby on Rails expert, having the privilege of working with large international enterprises (NBCUniversal, Comcast) as well as many promising startup companies. I consider myself to be a hard-worker motivated to deliver only a well-tested, scalable and performance-wise code that meets the current programming standards. During my career, I learned that understanding client's needs, good planning, proper programming experience as well as regular and honest communication are the key factors to build a successful relationship. Please have a look at my portfolio and the feedback I got from my clients. I’m passionate about learning new tools and programming languages and I quickly adapt to new environments. I’m seeking long-term relationships and new challenges. I am looking forward to hearing from you about your next project!

$45.00 /hr
4,353 hours

Jakub Zuchowski

Jakub Zuchowski Agency Contractor

Ruby on Rails Developer

Poland - Tests: 5 - Portfolio: 7

I have been a Ruby on Rails programmer for almost 5 years now (since early 2010). I have worked with various Polish companies, including micro-teams and a Corporation. I focus mainly on back-end development, such as json based APIs and try to master the techniques of BDD. I am happy whenever I can break out of Rails` default presentation schemes, and complement its backend with a completely new presentation-oriented technology, like Backbone.js. Outside of Ruby I am interested in learning Python and (very recently) C. I have experience as both a team player and a self-sufficient developer. I always try to pursue the best solution and am keen on learning new technologies, especially when I can put them to practical use.

$40.00 /hr
2,464 hours

Maksim H.

Maksim H.

Frontend Ruby on Rails developer

Estonia - Tests: 3 - Portfolio: 10

I specialize in PSD2HTML converting for Rails applications. I have 3 years of experience in back-end development with Ruby on Rails and know very well the way around the asset pipeline, helpers, controllers and views. My advantage is that I know very well HAML and SCSS and have strong experience with Ruby on Rails. I always try to write clear code and commit messages. I'm able to work through GitHub and communicate in Skype.

$39.00 /hr
400 hours

Dmitri Kanavalchuk

Dmitri Kanavalchuk

Senior Ruby on Rails Developer

Belarus - Tests: 11

I'm fullstack developer. My strong communication, time planning, estimating, analysis and programming skills are guarantee that your tasks will be done properly, perfectly coded and finished in time. My current skill set includes: * Ruby, Ruby on Rails * MySQL/PostgreSQL/Neo4j/MongoDB * JavaScript/CoffeeScript/AngularJS/jQuery * RSpec/MiniTest/Capybara * HTML5/HAML/SLIM * CSS3/SCSS/LESS, Twitter Bootstrap 2/3 * Windows/Mac OS/Linux Please feel free to contact me about more information and I'll share my CV with you. I have experience in analysis, estimate, architecture planning, test driven development, frontend development, backend development, API development, deploying and post production support, data scrapping and etc. I've worked with big distributed teams, with PMs, QAs, Analysts, worked by scrum technology. I'm familiar with popular bug tracking systems such as JIRA, Trello, Podio, Basecamp and etc. Email, Skype, Slack, Hangouts to direct communication with client. I can create any app from scratch or join an existing project. Feel free to contact me about any ideas you have! Thanks!

$44.44 /hr
524 hours

Alexander K.

Alexander K. Agency Contractor

Ruby on Rails developer / PhD

Russia - Tests: 7 - Portfolio: 2

Thorough and diligent computer scientist, devoted to implementation of brilliant technological solutions. Team leader in top 5 russian internet company. Web development (Ruby on Rails / Django / Other) Linux administration (Services, Networking, Virtualization) Artificial intelligence and big data expertise. PhD in Computer Science. Interested in challenging projects for me and my team.

$33.33 /hr
2,135 hours

Marcelo Oliveira

Marcelo Oliveira

Full Stack Ruby on Rails Developer / Ruby Expert

Brazil - Tests: 5 - Portfolio: 11

I am an full stack web Ruby on Rails Developer whit more than 5 years of experience of full hands-on experience in many projects. Already work at two companies as Ruby on Rails Developer, deal with back-end and front-end without problems in any application place. * MVP specialist * As i am full stack i can do work of 2, 3 people assuring quality and bug free. Can fix/improve existing projects and also starting from scratch, like to keep things simple to be easy give maintenance and not waste time. Differentials: - Expert in Ruby language, high quality code. Better performance and design. - 5 years of FULL experience with Ruby on Rails in various types of projects so have stronger knowledge of framework Rails and how it works. - Test Driven Development(TDD) experience, using Rspec/Factory Girls/Shoulda and others support tools. - Large experience with Heroku, Stripe, Amazon Web Services, Git, Ruby API Integrations, Javascript, Angular and jQuery. Skills already had experience: - Ruby Metaprogramming(expert) - Git, experience with Github and Bitbucket - Ruby on Rails (full hands on experience) - Heroku - Front-end knowledge to do anything my client ask - Twitter Bootstrap(work a lot with that) - Web development, HTML/CSS and Javascript - PostgresSQL - JQuery, own plugin published - Amazon Web Services (AWS) - Unit tests whit Rspec but also whit Test unit. - Background Jobs (Sidekiq, Rescue, etc) - Image upload - MailChimp - API development (About 3 Mobile Apps using my APIs), high performance APIs - Database Backups - Twillio - SMS Marketing - Email marketing - Third parties - JSON (Read and Write) - Angular JS, in many projects - Stripe Payment(Individual charge/Subscriptions) Already work a lot with Mobile, using my Rails API: - Android (own app published) - Windows Phone (own app published) - iOS (own app published) Some Ruby Gems already work(not all): Devise, Capistrano, AWS-SDK(Amazon Web Services), Paperclip, Stripe, Kaminari, Pg_search, Rspec, FactoryGirl, Shoulda Matcher, Rails Admin, Pg_search, Solr, Kaminari, Faker, Twitter Bootstrap, Sidekiq, Rufus Scheduler, Twillio(SMS), Gibbon(Mailchimp), Better Errors, Foundations, MySql, Puma, Thin, PG, SpreadSheet, Pry, New Relic, XLS, Redis, Oj, Browser, i18N, Heroku and lot of others. Have experience whit all this things and others, please contact to more info, im open to questions.

$75.00 /hr
158 hours