The role was a causal inference-heavy pricing role. Started with a HR phone screen followed by 4 interviews over two rounds. The first technical round involved foundational causal inference theory questions followed by a pair programming component that involved refactoring ML model code. The final round consisted of 3 interviews that involved classical ML theory, a case study and behavioural questions respectively. The entire process took nearly 6 weeks. I was strung along for a few weeks after the final round by HR before I ultimately got a rejection.