1. Recruiter reach-out from social network.
2. Recruiter chat.
3. Technical phone interview. This interview mainly focuses on coding.
4. Temporarily added chat with hiring manager.
5. Onsite panel interview. This interview was done physically in their San Mateo office, with lunch included and travel reimbursed. It included pair coding, problem-solving, system design, and a behavioral assessment (with the hiring manager).

Coding (phone):

1. Range intersection of two sorted lists of non-overlapping ranges.
2. Same problem with k lists instead of two.

Coding (onsite):

Implement a sequence processing method, given 1 input at a time, that returns true only when recent historical inputs contain a certain sequence.

Problem solving:

Merge sort of a large file on external storage. Discuss possible solutions and their pros and cons. Discuss performance tradeoffs regarding key parameters.

System design:

Database schema design for an airline booking system. SQL queries for certain requests. Improvements to make for new features.

Behavioral:

1. Reason for pursuing an advanced degree.
2. A successful project that you were proud of.
3. A hard-to-deal person you collaborated with.