Rails Freelancers

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Vladimir D.

Vladimir D.

Full Stack Ruby on Rails develop

Ukraine - Tests: 1 - Portfolio: 3

Hi, my name is Vladimir. I'm from Kiev, Ukraine (GMT +2). I'm full time freelancer and I'm searching for interesting projects to join your team. My main specialisation are Ruby on Rails and React.js/Flux. My approach is results-oriented, my goal is to meet your needs and deadlines. When working on a new project I like to have a clear understanding of your goal and vision of the project. I love to work with most modern technologies and frameworks. I have experience working with clients from the USA, Australia and Europe. Recent projects in which I participated are learning management system (web application), constituent management web application, CRM system for gyms and map-based app for planning rescue operations (as part of main app). Thank you in advance for your time and consideration. I look forward to working with you soon. My favourite instruments: - Ruby and RoR - React.js + Flux + EcmaScript 6 My skills are listed below: - Ruby, Ruby on Rails - React.js / Flux - Javascript + EcmaScript 6 - jQuery - Backbone - Ember - Twitter Bootstrap / Zurb Foundation - HTML5, CSS3 - JSON, API's - SQL - Linux - Git - Ansible

$40.00 /hr
1,020 hours

Miroslaw Maziarz

Miroslaw Maziarz Agency Contractor

Senior Ruby on Rails Developer with Passion

Poland - Tests: 8 - Portfolio: 9

I have more than 8 years of experience in commercial web development. Over the last 7 years I have developed a variety of applications using Ruby On Rails, JavaScript, TDD, SASS, PostgreSQL, MySQL, Amazon EC2, Rackspace and Heroku. I am focus on productivity and quality; I am among the top 10% freelancers who passed the tests in RubyOnRails, PostgreSQL and Internet Security. I am interested in building the best quality software that means well designed, easy to maintain, easy to extend to a new feature and well tested with autotests. Please find my skills & experiences below. - Ruby on Rails - Frontend (Javascript / jQuery / CoffeeScript / Backbone / Bootstrap / Angular / HAML) - Node.js - Web Browser Extension Development (Chrome, Firefox) - Database (Mysql / PostgreSQL / MongoDB / Redis / Memcache) - 3rd Party API Integration ( Google Map API, eBay, Amazon, Paypal API ) - Github / Bitbucket / AWS / Heroku / Engine Yard - Server Management

Groups: Engine Yard Ruby on Rails Professionals Network

$36.67 /hr
6,055 hours

Dmitry Solomadin

Dmitry Solomadin

Ruby on Rails/Node.js/Java Developer

Ukraine - Tests: 10 - Portfolio: 5

Full stack Ruby on Rails/Java Developer with more than 6 years of experience. Worked on wide range of web application from small web startup to huge enterprise software. Experience in following technologies: java, RoR, javascript, html, css, coffeescript, jquery, mysql and many others. Experience of team leading and project management. I'm seeking for front-end and back-end development basically building the your site or startup form ground up. I also have a team of professional web developers and designers so if you have a complex project that will require more than one professional just contact me and we will deliver the best quality possible.

$36.67 /hr
532 hours

Vitali D.

Vitali D.

Expert Rails and full stack web developer

Moldova - Tests: 13

I have big experience in development of heavy loaded sites I have big experience in development of Facebook/Twitter/Linkedin applications I'm an expert Ruby On Rails developer I speak fluent on PHP/Perl/MySQL/Javascript I deliver correct good written code I never give up and try to solve problems in the best way. And btw, I have Master Degree in Computer Science. I'm interested in big hard projects where I can demonstrate all my skills.

$33.33 /hr
692 hours

Artem Fedorov

Artem Fedorov

Senior Full-Stack Developer - Ruby on Rails

Russia - Tests: 3 - Portfolio: 4

With experience in programming for over 14 years, I've been doing Ruby & Ruby on Rails web development for the last 4+ years. I love concentrating on the end result and final polish - that's what user will see and interact with. As a result of this thoroughness and attention to detail, my open-source history viewing plugin for Miranda IM (http://addons.miranda-im.org/details.php?id=2995) became Miranda's de-facto standard. In addition to ruby, I know and use the following frameworks/technologies: CSS, AJAX, HAML, SLIM, SASS, SQL (MS SQL, SQLite, MySQL, PostgreSQL), NoSQL (MongoDB). My main expertise is Ruby (and Rails) - I've got 2nd place in oDesk Coding Challenge among Ruby developers. Also, I'm in the top 10% in Ruby and Ruby on Rails tests on oDesk. My projects do deployment, server provisioning and production error reporting automatically. I use Capistrano to deploy projects, Ansible for server provisioning and New Relic with Airbrake or Rollbar to monitor app in production. I can read other languages, like php, java, perl, python, c/c++. https://github.com/artemf/

Groups: Coding Champs, Upwork Verified Developers

$80.00 /hr
117 hours

Matiss Kiris

Matiss Kiris

Expert Rails | Node | Go | React | JavaScript | Front-end developer

Latvia - Tests: 5 - Portfolio: 4

My name is Matiss. I am a freelance/contract web developer who enjoys developing web applications of all kinds using Ruby on Rails (2 - 4), Go[lang], Node.JS (IO.JS), React.Js, React Native, Redux, Express.JS, RethinkDB, MongoDB, PostgreSQL, MySQL, Redis, HTML(5), CSS and JavaScript in an agile manner. My main objective is to provide excellent service, with timely, accurate, and professional results. I love clean, readable, standardized and well managed code. I like to keep everything as simple as possible. I am a big fan of responsive, clean (minimalist) and user friendly/oriented web design. I am always looking for a new opportunities, challenges and long-term partnership. If you feel like we can collaborate, please, contact me. I hope to hear from you!

$40.00 /hr
185 hours

Ivan L.

Ivan L.

Ruby on Rails Team / REST API / ReactJS / AngularJS / Ionic / BigData

Ukraine - Tests: 1 - Portfolio: 1

I'm a Tech Lead with about 10 years experience in web-development and about 6 years in Ruby on Rails. I have in portfolio more than 40+ finished rails projects from social platforms and e-commerce to SaaS. I'm self motivated, can solve complex tasks in a short time. In the past two years my main roles were architecture planning, choosing the right technology stack using the client's requirements, development management, team management I like Agile and use it every day - iterations, scrum daily meetings, retrospectives. I like confident code and TDD/BDD. I'm experienced in RSpec, Capybara and Cucumber. Often I help clients to understand what will be the best development approach for them. Do they need only MVP or there is a sense in building full version. What technologies are best for their project. Plan deadlines and budget. I'm very familiar with AWS technologies stack - setup EC2 instance from scratch, configure balance loader(EBL), setup push notifications service(SNS), emails(SES), database instances(RDS), and other services I have an experience in buiding a high-load applications, huge processing centers with 1,000,000 processed jobs daily(in Sidekiq), PostgreSQL database size more than 500GB and everything places on EC2 instance with 32 Cores and 68GB RAM. That was very excited. I'm a fun of continues integration and continues deploy practices. I also have experience in front-end development: JavaScript on advanced level, canvas, CoffeeScript, web-sockets(socket.io) with node.js back-end, backbone.js, Ember.js In the past years there is a trend to have an application with RESTful JSON API built in Ruby on Rails. I have experience in building more than 5 different APIs for different projects. Some of them were versioning and have up to v4. There is always a challenge to support old versions, but we successfully doing it. Some have HIPAA protection, one application had a really complex structure of API URLs but it was very easy to work with it in the end since we built it human readable. Thanks for you time!

$40.00 /hr
3,106 hours

Alexey K.

Alexey K.

Full-stack Ruby/Rails/Sinatra, Coffeescript/Javascript, GO developer

Russia - Tests: 3 - Portfolio: 3

More than 15 years working as a software engineer. I was involved in the design and development of software of varying complexity, with a large stack of technologies used. I'm self-motivated in improving my skills and learn something new. I have a positive experience of developing and supporting backends for mobile applications using RoR and Sinatra frameworks and mobile applications for the iOS platform. I have a positive experience of designing and developing large high-load application with microservices architecture with using GOLang/Ruby as language for development, Redis for caching and fast storage, PostgreSQL for persistent data storage, RabbitMQ for message routing, JSON as message format and Docker/Ansible for deployment.

$33.33 /hr
509 hours