To thrive as a Drupal Site Builder, you need a solid understanding of content management systems, web development fundamentals (HTML, CSS), and hands-on experience building and configuring Drupal websites. Familiarity with Drupal modules, themes, site architecture, and configuration tools like Drush and Composer is highly valued; an Acquia Drupal certification can also enhance your credibility. Strong problem-solving, communication, and collaboration skills help you interpret client requirements and work effectively with developers and designers. These skills ensure you can build scalable, user-friendly websites that meet both technical specifications and business goals.