He could be clearer about what he does. He did say "Last year a recruiter reached out to me about a work from home job writing enterprise APIs." He doesn't mention going from writing APIs to operations management. Which seems to be where the confusion is coming from.

Though that is my understanding of how you make a big career change. Do your current job in a company that does what you want to do. Then change roles rather than jump to the role you want straight. Kind of beat the chicken and egg problem, of needing experience to get a job and can't get experience without a job. A job that is adjacent to the one you want is "second hand" experience.