In February 2026, Paul Nielsen announced that he will transition out of his role as director and chief executive officer of the Software Engineering Institute (SEI) at Carnegie Mellon University. During Nielsen's tenure, the SEI has marked major institutional milestones that underscore its enduring role in strengthening the security, resilience, and reliability of the nation's software- and AI-intensive systems. The institute recently celebrated 40 years of innovation and saw its contract renewed, which paved the way for CMU to operate the SEI for another five years. In our latest SEI podcast, Nielsen recently sat down with Matthew Butkovic, technical director of Risk and Resilience in the SEI's CERT Division, to discuss his legacy at the SEI, the impact of mentors, and the importance of encouraging scientists and engineers to do their best work.