A person who creates and refines questions for generative AI systems.  Sometimes called an "AI whisperer," this is a highly-paid occupation in the 21st century.  AI prompt engineers analyze the results they receive from the AI system and modify the prompts for greater accuracy.  Multiple versions of a prompt are commonly tested to determine the most effective one.  Understanding the nuances of linguistics is essential to mastering this discipline.  See 
AI engineer, 
generative AI and 
large language model.