Amazon has added Prasad Kalyanaraman to its senior leadership team, the S-team or "steam," and has promoted cloud computing and AI services leader Dave Brown to senior vice president. The changes were announced by CEO Andy Jassy, who praised Kalysad's focus on customer satisfaction, high standards, ability to be right often, delivery, and a missionary approach. The S-team brings the team back to 28 members, down from over 30 when the last major addition was made in September 2023.