Requirements - Higher education; - Experience in writing websites and microservices in Ruby on Rails for at least three years; - Excellent knowledge of Ruby, Ruby on Rails; - Experience with databases - PostgreSQL, MongoDB, Redis; - Good knowledge of SOAP / REST API; - Ruby application server: Puma - Experience with message brokers: ActiveMQ, RabbitMQ - Experience with background tasks (Sidekiq) - Ability to understand someone else's code; - Knowledge of unix-like systems; - Ability to work with version control systems