Postdoc exploring tenure track faculty jobs against the wish of mentor
It's your future and not that of your adviser, so I'm surprised that an adviser would say that they want you to work as a postdoc "for a few more years" -- which sounds far beyond the usual 3-year postdoc period.

My recommendation is essentially the same as for at least half of the questions on this forum: Communicate with your adviser. Have an honest talk about your future, why you desire to look for tenure track jobs, what you need from him in this regard, etc. You will very likely need your adviser's support (through letters, introductions, and in other ways), and the only way you'll get that is if you have honest conversations about what each of you want to get out of your current relationship.