1. Apply online.

2. HackerRank test with four separate questions in one hour (two coding, one whiteboard flowchart type question, one SQL question).

3. Recruiter questionnaire. Contains simple questions about past experience and so on.

4. Four separate rounds of interviews (three HackerRank type questions and a test of AWS/distributed knowledge, and one behavioural/culture fit interview).

• Definitely study up on Big O notation.
• Memorizing algorithms and data structures probably isn't necessary.
• Knowing and having practical experience with AWS will give you a huge advantage.
• Studying medium to hard level questions on HackerRank is where you want to be.

Given a system that contains a compromised user API key, what actions would you take to mitigate further risk?