SAP Developer interview questions

Interviewed by a developer and a product manager. First half was all behavioural and asked about job experience on your resume. Picked a project and wanted you to explain how it was architected. Second half was technical questions.

They offered Software Developer position with M.Tech (Software Engineering) from BITS Pilani. First, they conducted an online test on HackerRank. 2 coding questions & some technical along with analytics questions were there, you could choose any language for solving to coding problem. only 2 got selected from my college out of approx 100. In the next round, they called us for the interview. The interview part consists of 3 rounds. 2 Technical (Group wise, 1:1) and 1 HR. In the first technical they asked me to write a program (palindrome sub-string related). I wrote & submitted first (there were 4-5 students in a group) then he asked to reduce the complexity, I tried but was unable to reduce it to O(n) from O(n^2). After the first technical they selected only 8 people out of 48.