Listening to the audio (again, I appreciate you sharing), it sounds like you're not wanting to play along with the conversation game and that makes it a hard sell to put you on a team. Now, this is just a perception. So, if you don't feel like you could change that, then what I'm suggesting, is that as soon as you can, while on a call, ask them to open your custom website that fires off python back-end code when they click on a cool button and so on.
Then I would just clarify, "I'm kinda socially awkward, I love to code, and would be happy to help your company make great software experiences for your customers".