Just ask the candidate whether if they have contributed to relevant large open-source projects in the language you are looking for. If not, then give them a hard leetcode question.
All you have to do for this hard Leetcode puzzle is to ask the candidate to complete it in Rust.
ChatGPT will struggle to help the candidate as it generates garbage.
After they have completed it then for the second technical interview, question the candidate around how they came up with the solution step by step to show if they really understand both the language and algorithm used to solve the puzzle.
This rigorously filters out 95% of frauds and impostors whilst targeting the best and brightest (really).
All you have to do for this hard Leetcode puzzle is to ask the candidate to complete it in Rust.
ChatGPT will struggle to help the candidate as it generates garbage.
After they have completed it then for the second technical interview, question the candidate around how they came up with the solution step by step to show if they really understand both the language and algorithm used to solve the puzzle.
This rigorously filters out 95% of frauds and impostors whilst targeting the best and brightest (really).
Job done.