To thrive as a Junior Ruby on Rails Developer, you need a solid understanding of Ruby programming, web development fundamentals, and basic knowledge of the Rails framework, often supported by a computer science degree or coding bootcamp experience. Familiarity with tools like Git, SQL databases, and integrated development environments (IDEs) is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills help you collaborate on team projects and adapt to feedback. These skills and qualities enable you to build reliable web applications, contribute to codebases, and grow within fast-paced development environments.