Pine Labs Software Engineer interview experience

There was also a client-style round mixed into the sequence. The topics were heavily focused on the runtime and concurrency side of backend work, especially collections, garbage collection, and how heap memory could be optimized.

Concurrency came up too, where I had to explain how concurrency could be handled using multithreading concepts like executor service and scheduled executor service. I liked the clarity of the structure—each round felt like it had a specific theme rather than a random grab bag. It was challenging, but I felt like the interviewers were staying grounded in fundamentals.