Very warm HR staff, explaining every bit in details. Very responsive and the Engineering Manager took his time to explain me the reason for rejection. Although I was rejected but because of my own mistake I did not add a very obvious step in the challange because I was simultaneously writing another one where they mentioned to not add validations.

The interview process was positive. One skype call with a very kind person and a code challenge. Code challenge was challenging but not too much complex reading csv files extract info and sending some mail