Persistent Systems Software Engineer interview experience

The HR round asked me to write an SQL query to create a table, and then I coded to print the first 50 prime numbers. I also had to write out Pascal’s triangle, which made the coding feel more like pattern and logic practice than deep algorithm work.

When I moved into the later rounds, the emphasis stayed on basics rather than high-level system concepts. I was expected to know Java, and the technical questions stayed simple—things like a short query, one coding question, and some core operating systems and database management concepts. My interview schedule also spread across two days at