Apply-2 interviews set up once- 1st interview: design a delivery app system and what to improve , what was the hardest problem you faced in work. Asked about tech questions related to API, some parsing problem(used python)

The first round is a recruiter chat with HR, it lasted about 45 mins and could be divided into 3 parts part 1 is a basic information introduction like how are you and self-introduction part 2 has 10 multiple selections about technology, 5 of them are SQL relevant and 5 are web relevant part 3 is a hypothetical question that is not easy to answer