First round is a hackerrank test, fairly straight forward. Second round is a 1-on-1 hackerrank style question phone interview, can't remember the specifics but was something to do with a grid, had a BFS involved. Third was a zoom interview, part one a systems design question about getting product data from a server and ways to implement a low latency system to buy low, sell high, part two was another hackerrank style question about battleships. Really nice interviewers overall, were very accommodating with small mistakes.