The tech industry has unfortunately adopted the methodology of centralized hackable tests as the canonical gatekeeping method in the form of programming interviews.
Most big tech companies don't care about how good you have been at delivering some value through creating software: they want to see you deliver a very specific type of performance at a whiteboard. Interviewers are given specific math puzzle questions to ask. Interviewees are explicitly told by the same companies' hiring departments that they should aim to hack the system by studying books like "Cracking the Code Interview".
This is an industry that prides itself on supposedly making data-driven decisions through A/B testing. When it comes to hiring people to make those decisions, everybody just plays along to a decades-old script.
Most big tech companies don't care about how good you have been at delivering some value through creating software: they want to see you deliver a very specific type of performance at a whiteboard. Interviewers are given specific math puzzle questions to ask. Interviewees are explicitly told by the same companies' hiring departments that they should aim to hack the system by studying books like "Cracking the Code Interview".
This is an industry that prides itself on supposedly making data-driven decisions through A/B testing. When it comes to hiring people to make those decisions, everybody just plays along to a decades-old script.