Presto interview questions

Two Online test - Math test with 60 min and Code test with about 4 hours. Math test consists of basic math like calculus, linear algebra, and brain teasers Difficulty of code test is about medium to hard level in leet code. After online test, I got onsite interview. HR questions, and introduction of my projects in previous jobs, and following techinical questions. There was live coding test and brainteasers, too.

Got invited in only 2 steps. The first step was HR screening. The HR asked about my experiences and salary expectations. Then described about the company and its plans. The length was about 15-20 minutes. Few days later, I received invitation to the next step, which is a meeting with the director of engineering. Surprisingly, they never scheduled that meeting even after asking about my availability.