I applied online. The process began with a phone interview with the hiring manager. The coding problem was essentially the same as the minimum window substring problem. I passed the phone interview but didn't hear back for almost two months. I then sent an email inquiring about the status. They stated they were rethinking their business strategy and needed time to determine their hiring needs. About a week later, my on-site interview was finally arranged.

There were four rounds of on-site interviews.

• The first round was an object-oriented design problem about designing a Battleship game.
• The next round was about a Boggle game.
• Then, I had lunch with a product manager and a front-end programmer. They asked behavioral questions throughout the lunch, so I considered it an additional, less formal interview round.
• After lunch was the third round of interview with a product manager. She showed me their website on her laptop and asked for my thoughts on potential improvements. I believe I did poorly on this one, as I am not particularly strong in product-related areas and didn't offer any useful suggestions.
• The last round was another coding problem, a common one: given a target value and an array, find two numbers that sum up to that target value.

A whole round of questions about what feature to add or improve on their website. How can I come up with an improvement within 45 minutes? The website is being used by a lot of people and it's been there for years, after all.