Luma Financial Technologies Software Engineer - Java Developer interview questions

The interview was conducted in three rounds 1) Managerial round, 2) Technical Coding round, 3) System Design I was expecting to have a behavioural round in the Last round as mentioned by the company, but it turned out to be System Design. The 3 rounds were completed in a span of one week. I got rejected after the third round without any feedback. No response when I followed up.