Job Description Confident knowledge of Ruby and the Ruby on Rails framework; Experience in developing REST APIs and integration services; Experience with RDBMS (PostgreSQL); Database design and normalization skills; Experience with Redis; Experience with libraries RSpec, RSwag, Sidekiq, Devise (authentication), Pundit/CanCanCan (authorization)), etc.; Knowledge of libraries for integration with third-party services (Stripe, AWS S3, etc.).; Experience with CI/CD; Experience with version control systems (Git); Practical experience in writing unit, integration and e2e tests (RSpec, Minitest, Capybara...