I did a technical assessment for the Monetary and Capital Markets Department. I was given roughly three days to do an assessment that usually takes a week to complete. It was extremely difficult, even with the aid of LLMs. The questions were open ended and demanded a strong understanding of econometrics and machine learning. It took me 20+ hours to finish, and I ultimately submitted it late, which killed my application. The worst part however, was that they absolutely refused to respond to any inquiries. So you would essentially be spending 20+ hours of your time doing a pointless assessment for the marginal chance of proceeding to in-person interviews. Total lack of respect for a candidate's time and energy, there are much better places to apply to that demand far less.