10 years is OK, as long as there’s career progression, and the more recent roles have accomplishments that align directly to the new role that’s being applied for. Example: a 10 year tenure that began as a sys admin and grew into an AI director role is still good for applying to AI jobs. Counter example: Being a junior sys admin for 10 years who dabbled with a bit of AI on the side and then applying to an AI director role probably won’t fly.