I applied for (Site Reliability Engineer II - HashiCorp Platform DR) and the Code Pair round experience.

Format: Live Coding (60 Minutes).

The Task: Unlike standard LeetCode problems, this round was practical and object-oriented.

I was provided with a Skeleton Class and specific Function Signatures.

Round: Machine Coding / Code Pair

Question: "Simple Database" (In-Memory Key/Value Store)

Details: I was given a skeleton Python class and asked to implement a database library that supports basic SET/GET/UNSET operations.

The twist: I had to implement Nested Transactions.

• BEGIN starts a transaction (can be called multiple times to nest).
• ROLLBACK reverts only the latest transaction.
• COMMIT finalizes everything.