Jim Waldo is an American computer scientist and the Chief Technology Officer of Harvard University. He is the Gordon McKay Professor of the Practice of Computer Science at the Harvard School of Engineering and Applied Sciences and Professor of Technology and Policy at the Harvard Kennedy School. Previously he was a Distinguished Engineer at Sun Microsystems Laboratories, where he was lead architect for Jini, a distributed programming system based on Java, and helped develop Project Darkstar. He was also involved in some of the early design and development of the Java programming language and environment.