HCL Tech Software Engineer interview: five-round systems focus

The process felt like a marathon: I completed five rounds. It relied heavily on LeetCode-style problem solving but also went beyond surface system design. I had to discuss time-related concepts and how time-series data is handled in a production environment. The difficulty felt average to demanding. What stood out was the expectation to link algorithmic thinking to real operational concerns aroun…

Shared by a candidate · reported Jul 2026. Interview formats change; use it as a guide, not a script.