It's a relatively new position at the company, they mostly just talked about what the role would entail as part of the long interview day, and answered any questions I had.

First round was online assessment with math, programming logic, and leetcode style questions. Final round was super day style with 4 different sections. Company overview presentation (not really an interview). Then role interview talking with current engineer. Then a technical case interview, walking through cases of server errors, troubleshooting, problem solving. HR interview, expected salary, start dates, how you did, additional opportunity to ask questions.