Tell us about a decision you regret in a past project. What did you learn?

In one project, I decided to build a custom grid component in React instead of using a

third-party library like AG Grid or Material Table. We thought we’d save licensing costs, but

maintaining it became a huge time sink—handling sorting, filtering, edge cases. In hindsight,

the cost of development far outweighed the license. Lesson learned: Don’t reinvent the

wheel when a reliable tool exists—and always consider long-term maintenance when

making build vs. buy decisions.

Process, Quality & Best Practices – Interview Questions + Real-World