I interviewed for this job over a month ago but was ghosted. First round casual conversation, second round takehome, third round technical interview (takehome review + system design), plus final rounds of behavioural/meet the team/culture/founder sign-off The takehome consisted of receiving a binary file, and having to extract the information to export into a CSV file. The information had a caesarean cipher applied to it (specifically ROT13), so what you need to do is read in the file (I did this by pulling all the strings from the file), organizing it by row (the rows are grouped into First Name, Last Name, email + Date (sometimes), and zip code + email), split the rows from the file into different columns, apply the ROT13 shift to get it back to normal, and save that dataframe into a csv. Keep in mind there is a name column missing, and there is sometimes an extra character added to the end of some lines randomly. With this, you should be able to solve it quickly