How to Answer: "How do you handle a teammate who refuses to follow coding guidelines?"

“I first aim to remove human subjectivity by automating guideline enforcement via linters, formatters (Prettier/ESLint), and CI pre-commit hooks. If a teammate actively bypasses these or ignores architectural patterns, I initiate a private 1-on-1 to understand their perspective—sometimes guidelines are outdated or frustrating. I reframe the discussion around team velocity and readability rather than personal preference. If the guideline genuinely hinders productivity, I propose revisiting it during our team retrospective; if it's essential, I reaffirm our team agreement collaboratively.”

“I avoid making code reviews personal. I reference the agreed team style guide in comments. If non-compliance continues, I talk with them offline to explain why the standard matters for maintainability and offer to help configure auto-formatting in their IDE.”

“I rely on CI checks and established linter rules to highlight style issues automatically in pull requests, keeping code review feedback focused on logic and functionality.”