Indeed, in terms of scale it does allow access to a larger pool! But the reality is that even good candidates, on a given day can perform bad on these platforms

Indeed, in terms of scale it does allow access to a larger pool! But the reality is that even good candidates, on a given day can perform bad on these platforms - and that becomes the basis for the initial impressions. How many people would be willing to take up the next round of interview for a candidate who might have otherwise performed bad on these platforms ? Also, on the contrary, these platforms are used to eliminate a majority of "unpromising" candidates. It's just the easy way out for recruiters - outsourcing filtering mechanisms. As such the hiring problem is multi-layered. Programming is just one aspect of software engineering. Well designed software requires wearing multiple hats and requires thinking which novice programmers lack. When you make hiring a sport, you are likely to find more gamers of the platform than real problem solvers. Just read the comments on this article for the general feeling amongst experienced developers : https://dev.to/raddevon/hackerrank-is-teaching-you-to-write-terrible-code-3f1j https://dev.to/raddevon/hackerrank-is-teaching-you-to-write-...