Srinivas Narayanan, the head of OpenAI's B2B engineering team, has announced his resignation, marking the third senior executive departure from the company on April 18. Narayanan, who played a pivotal role in expanding the applications engineering team and developing key products like ChatGPT, cited personal reasons for his departure, including spending time with his aging parents. His exit comes just before OpenAI's anticipated major product launches, adding to the recent exits of the Sora lead and head of the science team.