Paychex Software Engineer interview questions

Coding Challenge followed by onsite interview. First round was with HR, just a formal introductory round after which he sent me a coding challenge. Had a call with HR again to explain the approach for my solutions and then I was invited for onsite interviews. Onsite interview was fairly simple. I was asked to write a code on paper with correct syntax. Simple Hashmap related question. Also had an interview with two other members who just asked my previous project experience and some basic conceptual questions.