Very solid hiring process.

The interviewers were very friendly.

The process included:

• 2 screening rounds
• 1 take-home HackerRank test
• 1 phone screen

The HackerRank test consisted of 2 questions: one easy and one medium problem.

The phone screen lasted 1 hour, with some general questions and a live coding session.

The on-site interview consisted of 3 rounds:

• 1 hard algorithm question
• 2 basic coding questions, which were tough to complete in 1 hour.

• How to send data to another process?
• Memory allocators

Onsite 3 rounds:

• Hard Graph / DP problem: Given a DAG, find the maximum number of nodes that don't share a direct relationship with each other.

• Design an in-memory implementation of SQLite, supporting CREATE TABLE, INSERT, and SELECT queries with AND clauses.

• Design an order management trading system: Parse orders and store them in an ordered manner for the buy/sell side.

• What is the difference between a thread and a process?

• What is different in each thread?

• What is the difference between latency and throughput?