I applied online. The process took 3 weeks.

Recruiter reached out and set up an onsite loop after the initial steps. Four back-to-back rounds in one day:

• Two coding-heavy rounds run by senior engineers
• One round with the hiring manager
• One behavioral round with a bar raiser

Mix of leadership principles and data structures throughout. Heard back within a week.

Standard BFS grid problem. Given a grid, find the time for all cells to reach a target state where the spread happens one layer at a time.

How did you answer:

• Clarified the constraints
• Walked through the approach
• Coded a clean BFS from all starting points at once
• Tracked the number of layers until everything was covered