To thrive as a Java Lead, you need advanced proficiency in Java programming, strong understanding of software architecture, and a degree in computer science or a related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and experience with version control systems like Git are typically required, along with relevant certifications like Oracle Certified Professional Java Programmer. Leadership, effective communication, and problem-solving abilities are essential soft skills for mentoring teams and managing projects. These skills ensure the successful delivery of robust, scalable applications and foster high-performing development teams.