athenahealth Software Engineer interview experience

The first round was all problem solving: I handled a duplicate-value search in an array, then moved into binary search, including the follow-up of how I’d adapt it for a rotated array. The interviewer kept drilling into the reasoning behind the approach.

Next came system-level thinking. One round felt like an HLD exercise based on a known product-style system, and I also got questions tied directly to my work. The final round was another design choice: I was asked to choose between a URL shortener and something like a ticketing/payments-style design, and I picked the URL shortener. We talked