Rails Freelancers

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Pavel K.

Pavel K. Agency Contractor

Senior Rails / Ruby developer

Ukraine - Tests: 4

5+ years experience using TDD with Ruby (Rails & Sinatra) My career in IT sector started from an Internet start-up (a new technology in Internet advertising). Having started as a Junior programmer I've quickly grown to highly qualified Senior developer. I also developed myself as a Team Leader and later as a Project Manager. I have widely distributed with highly rated professional skills in variety of informational technologies and other areas. - Experienced at developing and managing highly loaded systems; - Gained few years experience in developing mobile WAP and HTML5 games; - Experienced at developing a booking ticket system (airplane/boat/bus/train). - Developed a wide range of websites using HMTL5, CSS3, Ruby, Ruby on Rails, Sinatra, AngularJS, MySQL, SQLite, PostgreSQL, MongoDB, Sphinx, Redis, nginx, phonegap, php, etc. I have the great interest of creating architecture and bussiness solutions for big projects. My colleagues see me as highly motivated and oriented on a the best result. I'm looking for some interesting projects for long term cooperation.

Groups: Application Developers Alliance

$49.50 /hr
878 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

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

Alex Fortuna

Alex Fortuna

Lead/Senior Ruby on Rails Developer, Mentor

Russia - Tests: 9 - Portfolio: 3

I've been developing in a variety of languages on different platforms over the last 15+ years and I'm still enjoying it. Programming is my lifelong passion. The things that excite me the most as a developer are those innovative, unique and technically tricky. The things I try to achieve as a team leader are just these: efficiency and harmony. I see a successful product as a harmonic combination of well-designed software AND a well-tuned team involved in its creation and subsequent development. As Upwork freelancer I specialize in dynamic Web application development using Ruby on Rails and JavaScript (AngularJS, React.js), commonly in a position of CTO or lead developer. I prefer to do base/architecture stuff myself and direct the team to do regular parts. I've got all sorts of experience required for both hands-on work and mentoring: 15+ years overall development, 9+ years Ruby, 7+ years Rails, 10+ years Unix/networking, 5+ years Git, TDD, etc. etc. I believe that QUALITY is the key priority if you want sustained growth. I provide it, I motivate or otherwise make others provide it. It takes time? Yes, but... "Good cooking takes time. If you are made to wait, it is to serve you better, and to please you." ——— Keywords and samples ——— Solid, long-term, clean, well-documented, maintainable, resilient. Please read my clients' reviews for more live keywords. Also, please take a minute to look at my code samples: https://github.com/dadooda/code-samples. There are also some open source contributions in the neighboring GitHub repositories. ——— The DO statements ——— If any of these statements are relevant to you, please DO apply as we'd probably get along together nicely: * "We had tough experience with Indian developers in our previous project. This time we want to begin by building a solid base which would guarantee us stable growth for the next 3-5 years." * "We have an ongoing issue in our distributed team: every time a developer leaves, the new one spends weeks becoming familiar with the project. We need someone to take care of connecting new developers smoothly." * "We like our current developers, but they seem to try new fancy things out of boredom or curiosity. We want to balance it somehow to stop losing momentum because of thoughtless fun experiments." * "Our current developers are okay writing code, but they get annoyed when being asked to explain or describe something, even to one another. We want a lot more sustained awareness and shared vision between our team members." * "One of our developers likes Apple, another one is a PC/Linux man. Both are great, but they keep arguing over their preferences which is a productivity killer. We want someone with authority to deal with them both." ——— The DON'T statements ——— If any of these statements sound true, please DO NOT apply since I'm probably not good enough for you: * "We'll start our new project with cheap student developers. It's then easy to invite a senior guy for a week or two to correct all of their mistakes." * "We don't need any written specs or documentation. We have Agile, Scrum, XP, pair programming and Slack chatroom instead." * "Writing project description is a waste of time. We'll start posting Scrum stories right away. A good developer should read our mind." * "We'll use NoSQL in our new project. Why? We don't know, but blogs are full of statements that it's better than SQL." * "We've just completed the visual design of our new application. Now we need someone to write code for it, which is a trivial technical procedure." * "We believe that this alone guarantees our code to be clean and solid: keeping methods shorter than 5 lines and keeping classes shorter than 100 lines." * "We've had a lot of trouble managing distributed teams. This time we want ONE great developer to handle everything. We can definitely control one person." Thank you for reading this far. If you're interested, post a job for me or send me a message. Cheers!

$37.00 /hr
2,497 hours

Dmitry Z.

Dmitry Z.

Ruby on Rails Developer and DevOps

Russia - Tests: 8 - Portfolio: 5

I am a Ruby on Rails Developer and DevOps who has strong skills and pragmatic experience. Also I had extensive IT background as an expert Linux sysadmin for over 12 years. My knowledge of programming languages and systems administration allows me to integrate and automate much of my work. My code examples available at https://github.com/freeminder/ Web Frameworks: Ruby on Rails, jQuery BDD: RSpec, Capybara Configuration management and deployment: Chef, Vagrant, Capistrano Continuous Integration: Jenkins SCM: Git Scripting: Bash, Ruby, Python DB: MySQL, Percona XtraDB Cluster, PostgreSQL, Redis, MongoDB Cloud platforms and API: AWS, DigitalOcean, Softlayer, Rackspace, Linode, Mandrill, Twilio Virtualization hypervizors and containers: KVM, VMware ESXi, VirtualBox, oVirt, OpenVZ, LXC, Docker, DEIS, Kubernetes Monitoring: Zabbix, Nagios/Icinga, Munin, Cacti, Monit Load balancers: HAProxy, Nginx App servers: Phusion Passenger, Apache Tomcat

$44.44 /hr
1,156 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
5,766 hours

Alexey Ivanov

Alexey Ivanov Agency Contractor

Node.js / Rails / jQuery / Backbone.js / ASP.NET / PHP Developer

Russia - Tests: 11 - Portfolio: 1

Experienced in ASP.NET MVC / SQL Server / PHP / MySQL / Zend Framework / Ruby / Rails / Sinatra/ Dashing / NodeJS / ExpressJS / CoffeeScript / Redis / Mongo DB / Backbone.js / Angular.js / Require.js / batman.js / Bootstrap / HTML5 / CSS3 / LESS / Javascript / JQuery / TDD / BDD / Git / Mercurial / SVN Aimed on long-term cooperation. GitHub: https://github.com/alivanov BitBucket: https://bitbucket.org/alivanov https://bitbucket.org/intspirit

$35.00 /hr
4,531 hours

Farid B.

Farid B.

Full stack Ruby on Rails developer

Russia - Tests: 3 - Portfolio: 1

Over 10 years of experience with C, Ruby, Ruby on Rails, Go, Linux. I'm self-motivated in improving my skills and learn something new.

$50.00 /hr
2,037 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

Serhiy Pokrovskyy

Serhiy Pokrovskyy Agency Contractor

Expert in Ruby on Rails, C#, .NET, PostgreSQL, MySQL - 8 years exp.

Ukraine - Tests: 2 - Portfolio: 22

Started as a freelancer programmer, I've quickly grown to highly qualified and valued developer at ELEKS Software where I co-worked with world-famous companies and enterprise products such as SAP, Microsoft Dynamics and other, was a team leader and later a project manager of a growing real-estate management project. I have widely distributed and highly rated professional skills in variety of Informational technologies and other areas. In 2010 I've founded an Internet start-up - a new technology in Internet advertising. Now after my company is growing fine, I'm looking for some interesting work to do to feed my hungry developer's brain. In 2012 I've founded an outsourcing company, Synnergia Solutions, and working now on growing my development resources with highly qualified developers to tightly co-work on lots of interesting projects.

Groups: Application Developers Alliance, Crossrider...

$150.00 /hr
4,163 hours