[crdoconnor]

>But this Email in response to hackerrank - would make me perceive this to be someone who would respond with a complete change to our CI/CD processes, to our infrastructure, maybe to even using Node - as this sort of task is beneath him.

This makes me think that you're a poor judge of character and of a slightly authoritarian mindset.

This email is one of many protesting an industry interview culture that prioritizes badly thought through exercises that bear little relationship to the job being interviewed for.

>What I want is the node version updated

And do you really think that seeing candidates reverse a binary tree without protest will tell you how well they can perform at this kind of role?