Pegasystems Full Stack Engineer interview experience

The first interview focused heavily on JavaScript—things like hoisting and the event loop, design patterns, async concepts, ES6, and even how deep cloning works in JavaScript. I also got a logical reasoning piece and a puzzle.

The next round leaned into authentication and authorization with Spring Security. There were a couple of puzzle questions too, but what stood out was how much they were evaluating my approach—how I reasoned through the problem. The third round then turned toward my background and projects. I was asked a logical question where the interviewer seemed to have a preferred