Katkat

How would you improve AI-generated code?

ShopifySoftware Engineer · Technical Screen

Last updated

This question evaluates software engineering competencies such as code review, correctness and edge-case reasoning, API design and readability, test strategy, maintainability and extensibility, and performance and failure-mode analysis within the Software Engineering Fundamentals domain.

During a pair-programming interview, you wrote the rover simulator code using an AI coding assistant. The code works for the basic examples, but the interviewer asks:

“Assume this code was largely generated by AI. What would you improve before shipping it?”

Provide a structured code review plan and concrete improvements covering:

  • Correctness and edge cases
  • API design and readability
  • Test strategy
  • Maintainability/extensibility (e.g., multiple rovers, 3D)
  • Performance and failure modes (invalid inputs, boundaries, collisions)

Be specific about what you would change and why.