Backend Ruby on Rails Engineer

I have more than 10 years of experience and I specialize in Back-end Ruby on Rails. Building and supporting small, medium and large companies. Whether in monolith or microservices projects, all using agile methodologies. My main skills are: Ruby/Rails/Sinatra, Git, PostgreSQL - MySQL - Redis - Elasticsearch - Graphql - Javascript - HTML/CSS - TDD - Rspec (unit tests) - Capybara (integration tests) and Continuous Integration (Gitlab CI - Circle CI - Codeship - Semaphore) - DSL ActiveAdmin - Agile Scrum and Kanban - Kafka/RabbitMQ.