System design & soft skills interview questions
Scenario-style prompts with sample answer outlines. Focus is on how you would design and reason in real codebases.
- 01Large-scale refactor strategyYou inherit a large, messy codebase that's slowing the team down. How do you approach refactoring it without halting feature development?
- 02Managing technical debtHow do you decide when to pay down technical debt vs continue shipping features?
- 03Driving architecture decisionsYou believe the current architecture won't scale, but the team is hesitant to change it. How do you influence the direction without blocking progress?
- 04PR feedback: non-isolated side effectsA junior engineer comes to you saying a senior engineer won't approve their PR because it has too many non-isolated side effects. How do you handle the situation?
- 05Onboarding and knowledge sharingHow do you help new engineers ramp up quickly on a complex codebase?
- 06Handling production issuesA critical bug appears in production affecting many users. How do you lead the response, both technically and with stakeholders?
- 07Scaling a codebase and teamAs a product grows and the team expands, what changes do you make to the codebase and development process to keep things maintainable?
