EU kind of in a recession though. And there's a well known link between interest rates and unemployment. So it's really not surprising to hear that employment in the EU is harder after the ECB raised rates. And good news: they're lowering them now.
What really needs explaining is why, despite the unusually strong general US job market[1] for several years now, the US tech market specifically has been seeing layoffs and hiring freezes. The answer seems to be "interest rates" but a proper explanation (which I didn't find skimming the article) needs to cover why tech is more influenced by that than say travel & leisure sectors.
Personally, while I think interest rates play a role at the margins, the author did himself no favors by benchmarking tech hiring at Feb 2020. Jan 2020 and the months before were relatively normal, but the pandemic put this tech hiring into overdrive, going from ~70 to ~220 on that chart. If you do three years worth of hiring in one single year, eventually you need to pause, and the interest rates hikes were the pause signal. Since this happened while every other sector was basically on government mandated furlough, it helps explain why the tech sector looks so different than the others in 2024.