I think lots of girls might have a bit of bias against guys with jobs in tech.
Maybe they heard stories about nerdy boyfriends that rather play video games than fuck their girls, maybe they think you will think less of her because she doesn't earn as much as you, there are lots of factors that can be at play (but mostly I think those two lol, the nerdy nerd and the poshy posh).
But as a guy that works on tech as well, generally I downplay what I do, I give some ridiculous answer, like I'm messing with her, avoid the conversation entirely, or just treat it like mundane meaningless stuff and move on to something else quickly.
Jobs in general are a bit of chore to talk about, you can you it to deep dive a girl, like tell me about your dream life, yadayadayada, but even that can backfire a bit if her current work is very far away from what she wants to do (and very often it is) and you don't do a very good job of keeping the convo positive. I often use it to pivot it to my hobbies, like how I play bass and rather have a rock band, but I gotta play the bills somehow (you can use it to paint yourself as more of a lover type talking more about your hobbies, which hopefully are not only tech related - yeah I play video games as well lol, but most girls don't, so I generally will avoid it completely unless the girl brings it up).
In this case maybe she just thought you were a completely different type of guy based on your profile, and when you told her that, that completely changed her mind, so she ran away. Maybe you need to work on your profile, maybe leave the job convos out until you have more rapport with the girl.
Also don't give into the girl's frame of "we need to talk more to meet, yadayadayada", online. If she tells you that, you already fucked up. Back when I was on Tinder, on the start of the year, all my dates came from being quick and just comboing the girl into going out with me in very few messages, like she matched with you because she thinks you're attractive (at least enough), you clearly are both there to date, so just do it! Open telling her something interesting, maybe a bit playful, maybe a compliment on one of her photos, maybe just heeey

or something, feel it out. But from there, you gotta be on the mindset of "close close close". I know it's very easy to get nervous and lost because you never texted a girl this hot (or at least that you think is this hot, from her photos), but get over it and ask her out, asap. When she answer you, switch your focus to logistics, where she lives, where can you two meet (don't just ask her, think about it and lead, on the sexiest/smoothest way possible - mostly just keep it easy and casual), and then ask her out. That's how I laid
this girl, and probably could have laid some other hotties (can't remember if there's details on our texting there, but there might be some on my journal). I can't really write a guide on online right now, and I don't even know if I'm qualified for it, but mostly it comes down to just having a good profile and following up on it correctly. If she's asking too much about what you do, she might be on the fence, so maybe work more on showing your fundies and personality on your photos.
Godspeed