Benchling Software Engineer interview experience

The problem wasn’t classic LeetCode—it was a real-time simulation task.

I had to simulate a traffic light system controlling two directions: East-West and North-South. Each direction had its own timing for green, yellow, and red. The input included a number of time ticks, and for every tick I had to print the current state of both lights.

Even though I understood what the system was asking for, it required careful state transitions and attention to timing. I didn’t receive an offer. The reflection I had afterward was that the process was smooth, but the problem type was exactly where my