RoR Developer

Remote · Full-time · Middle/Senior

About The Position

MWDN company is looking for a self-motivated and goal-oriented RoR Developer who would like to be a part of a team working on brand-new startup projects for foreign customers.


  • Design, build, and maintain reliable systems in Ruby and Ruby on Rails.
  • Integrate user-facing elements developed by front-end developers with server-side logic.
  • Identify bottlenecks and bugs, and devise solutions to these problems.
  • Help maintain code quality, organization, and automation.
  • Develop new system features, optimize existing ones, and maintain our existing portfolio of applications.
  • Collaborate with product, design, and other software engineers to define product roadmap and milestones.
  • Lead code reviews and mentor junior developers.


  • 5 years of experience with Ruby on Rails, along with other common libraries such as Sidekiq.
  • Solid understanding of object-oriented programming
  • Expertise in the following Ruby gems: Devise, Sidekiq, CarrierWave/Paperclip/ActiveStorage, Puma, ActionCable;
  • Comfortable writing SQL when ActiveRecord is getting in the way;
  • Experience with PostgreSQL
  • Familiarity with concepts of MVC, Mocking, ORM, RESTful, and GraphQL.
  • Experience with front-end technologies, such as JavaScript, HTML5, and CSS3.
  • Knowledge of server-side templating languages such as Liquid, Slim, HAML, etc.
  • Able to implement automated testing platforms and unit tests.
  • Bachelor's or Master's degree in Computer Science, or a related field, or ability to demonstrate expertise in modern development philosophy, operating systems, networking, Linux, SQL, and system architecture.
  • Upper-intermediate English level

Will be a plus:

  • Experience integrating Stripe, Sendgrid, Drip, Mailchimp, Twilio 
  • Experience with ES6 or Typescript;
  • Experience in a programming language other than Ruby or Javascript;
  • Comfortable using the terminal in macOS or Linux.
  • Familiarity with continuous integration and deployment.
  • Experience with Agile/Scrum development methodologies.
  • Prior experience leading a team or mentoring junior developers

Our next steps:

✅ Submit a CV in English — ✅ Intro call with a Recruiter — ✅ Technical interview — ✅ Test task — ✅ Client interview— ✅ Offer

About the project

Our client is a global AdTech company that works with selective brands on marketing strategies, content migration, and improving user experience. Apply for their open positions and get a possibility to work with both innovative startups and nonprofit organizations protecting our planet. Your skills and expertise will become a valuable contribution to developing advertising technologies.