Coupa Software Inc Software Engineer interview experience

In round one, it started like a screening where we talked about product development background and then I answered a couple of simpler questions—one around logging and generally what technologies I’d used.

Round two was where things got more technical and architectural. They dug into microservices concepts and how pieces fit together—topics like API gateway patterns, JWT authentication, and comparisons like gRPC vs REST, plus SQL vs NoSQL tradeoffs. Then I was asked to design a rate limiter, and the emphasis was on how I’d reason through design choices.

Round three was a tech-managerial