Status: 17+ YOE for a DoD contractor. Staff SWE.
Position: Senior MTS
Location: Seattle
Date: Nov 2019

I had been leetcoding for just a few months.  Didn't even know LC existed until June or so.  I was referred by a friend in OCI.

Phone Call With Hiring Manager:
Brief phone call about my background, and a description of what his group does, to gauge my interest in going any further.

The following week, I had a phone screen with one of the engineers in the group.

Phone Screen:

1. https://leetcode.com/problems/two-sum/
2. https://leetcode.com/problems/min-stack/
3. Fix string API to make reversing a string faster and/or more efficient. The hint is that it only prints one letter at a time, and there is an API call to reverse the string, or put it back to its original order.

Onsite Interview:
Round 1:

1. https://leetcode.com/problems/trapping-rain-water/
2. FizzBuzz

Round 2:

1. Answered any questions I had.
2. Discussion about OCI core values
3. A variation of https://leetcode.com/problems/meeting-scheduler/ that returns the total occupancy during the day's timeline as well as conflicts in a schedule.  

Round 3: Lunch Interview w/Hiring Manager:

1. Answered any questions I had
2. Behavioral Question.
3. System Design question after lunch: Design a system to handle the next presidential election.

Round 4:

1. Given a unique, sorted array, find i such that arr[i] == i.
2. https://leetcode.com/problems/binary-tree-level-order-traversal/

Round 5:

1. Behavioral questions.
2. Josephus's Problem:  https://www.***.org/josephus-problem-set-1-a-on-solution/ I heard never heard of this problem.  Didn't have much time either.  I came up with a solution using a linked list that probably wasn't very efficient.  The interviewer said there were bonus points for coming up with the constant time solution, but ran out of time.

This was a great experience, and given that it was the first time I'd interviewed in over 10 years and I haven't had a lot of practice problems under my belt, I'm pleased with how I did and how comfortable I was with the process.

The hiring manager contacted me the following business day, and gave me feedback on what I should work on to get better at interviewing.