I'm an introvert, but have always been "that guy" willing to go onsite (pre-covid) and/or get on calls with clients. My first job out of grad school was a data scientist at the peak of the hype in 2012. More time on calls and less time coding over a year or two. That turned into a post-sales implementation engineer role where I was basically professional services. At my current company they cancelled the post sales program and rolled us all into sales engineering.

I like the tech and meeting different people / use cases. I don't like the AEs and the vomit of acronyms and jargon that comes with the sales side of the house, although I guess you could say Salesforce is no worse than Jira/wikis that developers are familiar with.

Overall I enjoy it; I was a mediocre software engineer and the competition for SWE roles is damn tough. There are fewer tech folks who are ok with being on client calls for most of the day so it's a good niche. That said I do feel like my skills have atrophied a bit and there's not a clear path for growth. I'd love if someone who has been doing this for 20+ years could chime in :)