To thrive as a Junior Developer Intern, you typically need a foundational understanding of programming languages (such as JavaScript, Python, or Java), problem-solving skills, and a relevant degree or coursework in computer science or a related field. Familiarity with version control systems like Git, basic knowledge of development frameworks, and experience with collaboration tools such as Jira or Slack are often expected. Strong communication, eagerness to learn, and adaptability help interns excel in team environments and respond to feedback. These skills and qualities are crucial for contributing to projects, learning quickly, and building a successful career in software development.