Capstone or senior design courses are a key feature of most computer science programs as they provide students with authentic project experiences. Capstone courses usually focus on technical skill development, but we recognize that students will benefit greatly from developing communication skills. For example within Computer science, mastering such skills is essential for explaining and documenting system design, tackling development as a team, or leading large projects. Additionally, computer scientists need to be able to communicate their expertise to outside audiences such as funders, policymakers, customers and etc. However, when analyzing student preparation for oral communication, studies have shown that they do not receive enough experience-based training to communicate functionally and practically. In this paper, we describe our experience with a targeted intervention within a capstone course in Computer science. During the course, students complete a Senior project while receiving training on team and project management, public speaking, and leadership. We evaluated the intervention’s impact on improving students’ speaking skills and confidence by deploying surveys before and after the intervention. In the resulting data, we observed a significant improvement in the confidence of the students and their mastery of technical and nontechnical oral communication. We also noted that underrepresented groups, specifically female and first-generation students, showed the most drastic improvement. This experience highlights the need for accessible and practical oral-communication training for computing students and that such training might be of greater benefit to underrepresented students within the discipline.