Yeah, I know that story myself! I used to work for a computer company in California, a place to which all the "overachievers" tended to gravitate.
I'm also someone who tends to define myself based on my performance--sort of a "human doing" instead of a "human being."
I'm self-employed now, and actually I gained quite a bit in the years after I left the tech company. Most of my work is done remotely--for companies with folks I rarely see, if ever. That unfortunately removes one incentive for losing weight, but for me that's not a big reason. For me it's about health and fitness.
As a business owner, it's very tempting for me to work hours and hours--and sometimes it has been necessary because my work is deadline-driven. But it isn't always necessary!
I realized back when I lost the major part of my weight that I really could fit in the time to get exercise. It was like magic--one day I didn't have the time, and the next day I had made the time. Nothing in my work suffered from this! Evidently I had some kind of illusion about how many hours I had to sit at my desk...
And I also found that I really could control and plan about what foods I ate--I was not at the mercy of anyone else.
So, welcome! Hope to chat with you some more.