Coupa Software Inc Software Engineer interview experience

The first technical round covered a mix of core Java and web fundamentals: OOPs and collections, Java 8, Spring Boot REST APIs with annotations and exception handling, plus a React basics check on components, hooks, and state. It also included DSA coding focused on arrays and strings, and a database fundamentals segment with SQL and joins. The interviewer was supportive and asked both concept questions and practical ones.

A later round went deeper into advanced technical and system design. I had to lay out high-level architecture, talk about database design and performance/optimization, and