At least 5 years of experience with Rails or 7 years with a similar web framework Experience designing performant data models with MySQL Experience designing architectures with strong interface boundaries and separation of concerns Thorough understanding of writing web applications with Rails Experience with modern cloud technologies such as AWS, Docker, Kubernetes, and Terraform (Nice to have) Understanding of job systems for Ruby on Rails such as Sidekiq (Nice to have) Deep understanding of MySQL (Nice to have) Experience in scaling a web application (Nice to have) Knowledge of in memory datastores like Redis (Nice to have) Empathy for companies running many applications or microservices (Nice to have)