What does a senior Ruby on Rails engineer do?

A Senior Ruby on Rails Engineer is responsible for designing, developing, and maintaining web applications using the Ruby on Rails framework. They lead technical projects, write clean and efficient code, and often mentor junior developers. Their duties also include optimizing application performance, ensuring code quality through reviews and testing, and collaborating with cross-functional teams to deliver robust solutions. Senior engineers are expected to have deep expertise in Rails and related technologies, along with strong problem-solving skills.