In this conversation, Simon Elisha interviews Colm MacCárthaigh, Vice President and Distinguished Engineer at AWS, about his background in technology and his work at Amazon. They discuss topics such as Colm's first computer, his role in building the European sovereign cloud, and his involvement in the creation of the S2N open-source library for TLS and SSL protocols. They also explore the importance of writing code and staying relevant in the industry, as well as the operational metrics meetings at AWS. They also talk about the role of call leaders in handling large operational events and the importance of staying calm and focused in stressful situations. Colm shares his experience with patents and his preference for the Vim editor. They also touch on the Nitro Enclave technology and Colm's passion for music.