FLEXE Software Development Engineer interview questions

I applied and was emailed to set up an interview a day or so after. The phone screen started out with asking about my experience and what I knew about the company. Then I had to answer technical questions like why one data structure was better than another. Stuff about regular expressions. Then I had to do a coding challenge separately which was fun, but overall I have been working in alot of legacy code so the language I chose wasnt necessarily appropriate for the task. It dealt with string manipulation and determining groups within a string. Overall I had a positive experience although I didnt recieved an offer, I did get what I needed.