first I had conversation with an HR in video for 15 min, I was asked to introduce myself .after the conversation i got an home assignment. with 2 medium-easy style leetcode qustions,the lenght of the home assignment was 1.5 hour.then next step technical interview on Zoom for one hour

An initial phone call, then a short home assignment (real short, not like "it's about 2-3 hours" which actually take 2 days). Than a zoom interview with technical questions (quite simple, needs some thinking but not harder than Leetcode's easy), around 1 hour. Than in-office interview, also pretty basic questions, Leetcode's easy question, debugging a code and a more backend specific question (because I interviewed for Junior, it was very basic). Finally, an HR interview in-office.