187 Ruby on Rails developers in 60 agencies found

Full Stack Ruby on Rails and AngularJS Developer
Maxim is a proactive developer with a solid knowledge of Ruby on Rails development for the back end and AngularJS for the front end. He likes challenging tasks and always finds the best solution. He i...
3 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 16 Nov 2018
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 16 Nov 2018
Ruby Developer with a strong knowledge of Ruby on Rails.
As a Developer, I have experience at all stages of the software development life-cycle. I love to get into complicated business/technical issues and solve them using my programming skills. Learning is...
7 Projects completed
GMT West Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 14 Nov 2018
Passionate Full Stack Ruby on Rails developer.
Web development experience starting in 2016. Stanislav is persistent at work and highly disciplined developer with great analytical skills and ability to solve medium and complex problems. Has a gre...
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 16 Nov 2018
4 years experienced Ruby on Rails Full Stack developer.
Igor is responsible and initiative team-member, result-oriented. He has great analytical skills and ability to solve medium and complex problems. He has four years experience in the back end developme...
2 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 16 Nov 2018
5 years experienced Full Stack Ruby on Rails/Angular.js Developer
Denys is responsible and initiative team-member, result-oriented. He has solid experience working with Ruby/Ruby on Rails and AngularJS. He has great analytical skills and ability to solve medium and...
4 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 16 Nov 2018
Ruby on Rails Developer with strong hands-on experience in ROR.
William is a proficient engineer, with more than 8 years experience in web development. His duties include building web applications and API services, consume Restful API services, designing a Databas...
6 Projects completed
GMT+3 Middle East
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 13 Nov 2018
Ruby on Rails Full Stack Developer. eCommerce and online Marketplace focused
Oleksandr has great analytical skills and ability to solve complex problems. He is getting new skills fastly and applies them in the working projects successfully and promptly. Excited about technolog...
4 Projects completed
GMT+2 East Europe
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 16 Nov 2018
All rates are indicative, annual rate includes 20% discount
view Profile
Updated: 12 Nov 2018

No-one really matches your needs?

Normally we are able to pro-actively find any given talent within 72 hours.

Ruby on Rails

The Сomplete Guide to Hiring a Ruby on Rails Developer

Ruby on Rails is a combination of the Ruby programming language and front-end technologies for creating web applications that run on a web server. In other words, it is a server-side web application framework, so Ruby on Rails developers are considered to be back-end developers. They use a modular approach to writing Ruby code by using small libraries that are called “gems.” Typical daily tasks of a Ruby on Rails developer include the development of all server-side logic, database design and management, and ensuring responsiveness to requests from the front-end.

If you are looking for Ruby on Rails specialists, please check out this article, where we will explain which skills and knowledge are usually required from Ruby on Rails programmers.

Checking hard skills of Ruby on Rails programmer

RoR-specific questions:

  1. What is a swapfile and what is it used for? How does the garbage collector work?
  2. What is a code style guide? What style guides in Ruby and Javascript do you know?
  3. What is MRI (Matz Ruby Interpreter)? What role does it play in the software lifecycle?
  4. What are some use cases of tests? Is it always good to write tests? What approaches in test writing do you know? What test instruments in Ruby do you know?
  5. Philosophy question: How would you organise a RoR application where front-end is written with React.js/Angular.js/Vue.js?

General questions:

  1. What is strict typing and how does it differ from dynamic typing? What are pros and cons of each one?
  2. What is Microservice? What are the pros and cons of microservices architecture against monolith application?

So here is a complete list of skills to consider:

  1. Solid knowledge of the Ruby programming language.
  2. Experience with Rails and other common libraries, such as RSpec and Resque.
  3. Understanding of server-side templating languages, such as Liquid or Slim, and server-side CSS preprocessors, such as SASS, LESS, or Stylus.
  4. Experience in developing highly interactive applications for a wide range of users.
  5. Familiarity with relational databases, such as PostgreSQL, and NoSQL data stores.
  6. Understanding of the MVC (Model-View-Controller) approach.
  7. Basic understanding of front-end technologies, such as JavaScript, HTML5, XML, and CSS3.
  8. Ability to integrate the front-end with back-end.
  9. Proficiency with the Linux/Unix/MacOS X environments.
  10. Experience in creating RESTful web services.
  11. Ability to think logically in order to define problems, gather data and draw conclusions.
  12. Ability to carry out regular code reviews in order to improve code quality, design and tests.

Review the soft skills of candidates

YouTeam is a platform for hiring experienced software engineers, not junior developers. Here are the two of the most useful screening questions, you can ask candidates to help identify their level of professionalism.

  1. Please describe your previous experience. What was the complexity of these projects? What was your role on those projects?

What to look for in candidates’ answers:

  • Is s/he dedicated more to quality (clean code, code style) or to quantity (number of features delivered, product time to market)?
  • Is s/he a team player?
  • Level of responsibility.
  1. How do you deal with issues you are facing for the first time and don’t know how to resolve?

What to look for in candidates’ answers:

  • Is s/he a deep thinker or a code first then check person?
  • Does s/he engage teammates to discuss unknown issues?
  • Is s/he multi-functional person? Can s/he do DevOps tasks? Can s/he do front-end tasks?

There are no good or bad answers, it just allows to understand if a given candidate is a fit for your particular project.

We hope this article will save you time getting prepared for interviewing candidates. We hope you become a hiring rock star and succeed with your project by putting the right professionals into the right roles on your development project.

 

Gera-IT is specialized in Custom Solutions Development. Since 2006 they enriched their expertise, having delivered 140 projects of different scale with budgets ranging from $5,000 to $2 million. The distribution of clients covers 11 countries, including the US, Canada, Australia, the UK, Germany, France, the Netherlands, Denmark, Belgium and others.