To thrive as a Sustainable Design Intern, you typically need a background in architecture, environmental science, engineering, or a related field, along with knowledge of sustainable design principles. Familiarity with design software such as AutoCAD, Revit, and SketchUp, as well as certifications like LEED Green Associate or experience with energy modeling tools, is often valued. Strong communication, teamwork, and problem-solving skills help interns excel when collaborating with multidisciplinary teams. These competencies are essential for contributing innovative, environmentally responsible solutions and supporting larger sustainability goals in real-world design projects.