Ruby Ruby On Rails Freelancers

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Alexey Z.

Alexey Z.

Project Manager / Ruby On Rails

Israel - Tests: 6 - Portfolio: 10

I am currently freelancing RoR projects across the universe, fullstack rails coder for your duty. I have been doing this for the last 9 years now and I was employed as CTO & Ruby On Rails Senior developer, and my projects include wide usage RoR(1,2,3,4), I love new technologies and I can learn to use them very fast! I can develop anything starting from tech plan/mockup, through creating rails application (agile method) till full setup of VPS/dedicated server (or even cloud), then I can maintain and administrate this project. I work with cloud platforms like AWS, Heroku, EngineYard. I have ZERO unsatisfied clients. Knowledgeable in CI like Jenkins, and various management systems like Trello, Lighthouse, Jira, Redmine (You can have a tracking project with my private Redmine installation for no cost) and some others All small things around webdev; AJAX, HTML, CSS, JS, RSS, XML, JSON. SVN, GIT(preferred), Capistrano/Chef/Rubber for multistage deployment for test/production projects, SASS, SCSS, HAML, CoffeScript, REDIS, various types of caching. Capable to work in Linux/OSX/Windows environments.

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

95% Job Success
$55.00 /hr
3,519 hours

Evgenii P.

Evgenii P.

FullStack Ruby on Rails / Ruby and React.JS Senior Developer

Russia - Tests: 5 - Portfolio: 6

I'm the one of the TOP 10% Upwork Ruby, Ruby on Rails and JavaScript developers. My programming experience is more than 6 years. 4 years of Ruby/ Ruby on Rails / JS development and 2 years of React.JS development. I'm the one of a few developers who can jump in to any phase of project life cycle with full efficiency. I can work with big team or be independent developer. I can grant you that your project will be successfully finished to production stage without unexpectable situations. I can develop wide range of applications, modules, services and web applications in Ruby on Rails / Ruby / React.JS. My code is always clean, high-quality and easy-to-support. I use TDD to be sure that my apps stable and can be refactored or extended. So, my apps are dependable and pretty easy to extend with any new and unexpected functionality. My strong points are my Dependable, Creativeness and Punctuality. My #1 goal will always be to meet your needs and deadline. When I'm working on a new project, I like to speak with the client, so, that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. Thank you in advance for your time and consideration. I look forward to working with you soon. Please take a look on my professional skill above and on my portfolio. Technologies - Ruby (1.9.x / 2.x), ruby ​​on rails (3.x / 4.x), Sinatra - Javascript / CoffeeScript / ES6 (jQuery, Lodash, React + Flux, BackboneJS, MarionetteJS, a bit of AngularJS) - Tests: RSpec, Minitest, jest - SQL (PostgreSQL, MySQL, SQLite) - Twitter Bootstrap, MaterialUI - preferably Git (+GitFlow), also CVS, SVN. Knowledge/Skills - OOP, MVC, SOLID, GRASP - High performance, quick learner - When writing code, I use Agile methodology, TDD, BDD, DDD. - scope of work estimation and timing, delivering the work on time without further reminders - refactoring and clean code writing Software stack - Linux (Ubuntu/Debian), packages installation/configuration - Remote work on servers via SSH connect - for developement I use Vagrant with Linux-based system as close to real production server as possible - Unix shell (ZSH/Bash, Vim, Tmux) to work with Ruby and JS, Git - Bundler, Rake for development on Rails - Npm, Grunt, Bower, Yoman, Gulp, WebPack for JS development Experience - Creating, modifying and integrating API (REST JSON) - Micro Service Architecture - embedding full-text search with ElasticSearch and Sphinx - websites parsing, Mechanize + Nokogiri - writing from scratch - improving gems - Sideckiq, Redis for background data processing - Unicorn/Puma/Rainbows for Rails server - pub/sub messaging with Faye and - environment deployment and DevOps using Ansible - Nginx customization - deploying with Capistrano - Travis-CI / Jenkins-CI for continuous integration - catching errors with Airbrake and automatic sending to Errbit - Redmine, Trello for project management

100% Job Success
$38.89 /hr
673 hours

Usman Ahmed

Usman Ahmed Agency Contractor

Ruby on Rails developer, Mongodb expert, Enterprise Architect

Pakistan - Tests: 4 - Portfolio: 1

Usman loves working with entrepreneurs with brilliant ideas in ironing out the technology barriers they're facing. He has extensively worked on E Commerce systems, Enterprise Work flow automations and making organizations go paper-less by embracing technology throughout their operations. He has also helped organizations reduce logistic costs using data visualizations, Maps, optimization algorithms and Mobile Applications. His favorite goal is to build small independent systems of value which grow together into an ecosystem of mutual benefit. Languages : Ruby, Python Framworks : Rails, Persistance : Mongodb Specialties: REST Mobile Applications ETL Data GIS Mapping Enterprise Workflow Automation

Associated with: Ballista Labs

$33.33 /hr
122 hours

Dejan Cancarevic

Dejan Cancarevic

Full stack IT guy, mostly focused on Ruby on Rails and Backbone


100% Job Success
$33.33 /hr
953 hours

Miah Raihan Mahmud Arman

Miah Raihan Mahmud Arman Agency Contractor

Ruby on Rails Developer

Bangladesh - Tests: 7 - Portfolio: 6

Experienced as a Ruby on Rails Developer over 5+ years in web development. Developed highly scalable platforms for start-up companies using latest technologies. Also experienced in Team Leading and Team building.

Associated with: Backspace LLC

100% Job Success
$30.00 /hr
1,735 hours

Nand Kishore Bagde

Ruby on Rails Developer

India - Tests: 1 - Portfolio: 1

Over the last 3 years, I have developed a wide range of web applications using Ruby on Rails. My skills: Ruby, Rails, RESTful approach, TDD, BDD, RSpec, Capistrano, JavaScript, Ajax, jQuery, Prototype, scriptaculous, HTML/CSS/XML, MySQL, Google Maps, Rmagic, SVN, Git, Heroku, AWS My Roles and Responsibilities include: I build custom web applications, covering all aspects of the process - from specs and design to ongoing monitoring and maintenance. - Client interaction and requirements gathering - Architecture Design - Database Design - Involved in UI creation - Written Test cases - Deployment

$16.67 /hr
517 hours

Pavel Pachkovsky

Pavel Pachkovsky

Full Stack Ruby on Rails, AngularJS, DevOps Expert

Belarus - Tests: 4 - Portfolio: 3

I am Senior Ruby on Rails developer with 6+ years of experience. TECHNOLOGIES: Frontend: jQuery, Highcharts.js,Backbone.js, AngularJS, Twitter Bootstrap Backend: Ruby, Ruby on Rails, Sinatra, Jekyll, Golang DevOps: Chef, Capistrano, Amazon OpsWorks, Docker, JuJu Charms Databases: MySQL, PostgreSQL, MongoDB, Redis, RabbitMQ Payment Gateways: Stripe, PayPal, Skrill APIs: Google APIs, Twilio, Mandrill, Mailgun, Quickbooks, Mixpanel Misc: PDF and Spreadsheets generation, PDF-templates filling and and signing, Emails styling Workflow tools: github, Pivotal Tracker, Redmine, New Relic, Airbrake, Mailtrap

$40.00 /hr
147 hours

Kirk Portas

Kirk Portas Agency Contractor

4+ Years Agile Ruby on Rails, CSS3, HTML5, Javascript Back-end Expert

United States - Tests: 4 - Portfolio: 2

Hello! I have been active in Software Development for 5 years, and am specialized in Agile Web Application development as a Back-end and Front-end developer. I often function as a project manager or team lead, and have delivered software for clients ranging from startups to banks to Fortune 100 companies. I'm available by phone, skype, or google hangout during EST hours, and am able to meet with clients and other stakeholders to discuss project requirements as needed. Expert in Web development with Ruby on Rails, C#/.NET and familiar with common APIs including: Facebook, Twitter, Google, Proficient with Javascript, CoffeeScript, jQuery, CSS3, HTML5, Twitter Bootstrap, Skeleton, HAML, SCSS / SASS. Have built applications using Devise, ActiveMerchant, full-text search with Sphinx or Solr, and integrated Stripe. Have some experience working with: Node.js, Backbone.js Strong experience with TDD, RSpec, Cucumber, Capybara. Good with Linux servers, able to deploy, maintain and scale websites. Also experienced in writing Web scrapers. I keep up on the latest technologies and love to work with the most advanced tools. My firm, Atto, also has brand and graphic designers, project managers, and other developers available if you need a small team.

Associated with: atto

$85.00 /hr
63 hours

Otto B.

Otto B.

Senior Ruby on Rails Developer

Germany - Tests: 2 - Portfolio: 2

Hi, I am senior ruby on rails developer with full stack. As you know, I am a man of ripe experience in both web development and system architecture. First speaking of my strengths and skills, I am familiar with development from scratch and maintenance/scaling in front end and back end. For front end, I am familiar with not only html, css but also framework such as twitter or bootstrap, JS framework such as javascript, coffeescript and angular js. Also I have full experience with LESS and SASS. For back end, I have already experienced many web services and API integration. For system architecture, NGINX, AWS S3, EC2, Heroku, Capistrano, Unicorn, Passenger, puma and so on. Highlight projects are followings below: - Similar to stackoverflow. Stack about diet For now I am lead developer of this site. Currently this site take about 500 thousands users. Similar to thunderbird application. Here I implemented to integrate Outlook, Yahoo and Aol. Though I have no awesome reputation, I am still trying to get it in the upwork. My goal is to satisfy all my clients and tight responsive, punctual for all. I am proud of being freelancer in the upwork and it would give me happy. If you need my help, please contact me anytime, not hesitating. Best Regards, Otto Berg

57% Job Success
$38.89 /hr
670 hours

Vladimir N.

Vladimir N.

Ruby-on-Rails Senior Developer, Project Manager

Russia - Tests: 5

8 years in IT as a Software Engineer 3+ years experience with Ruby-on-Rails Technologies I worked with: Cloud Services: AWS(EC2, S3, Route 53), Heroku Client Side: HTML, CSS, JS, jQuery, Angular, Bootstrap Server Side: Ruby on Rails, REST Databases: PostgreSQL, Oracle APIs: Facebook, Google, eBay, payment gateways and many others Testing: Rspec, Cucumber Version Control: git, SVN Other: Redis

86% Job Success
$55.56 /hr
0 hours