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Linear
Hard7Challenges
1War Rooms
~20hPrep Time
1/7Completed
Small team, high bar. Craft, velocity, and opinionated product thinking.
14% complete
Interview rounds:Async Take-HomeTechnical Deep-DiveCEO/Co-founder Chat
PR Review3
await Inside forEach — Silent Async FailureA junior dev refactored the order-fulfilment service to send confirmation emails after eac…
Junior~10 min
Missing useEffect Cleanup — Memory Leak on UnmountA junior dev added a live-poll feature to the notifications panel. After navigating away, …
Junior~10 min
TypeScript `any` Leaking through GenericsA developer created a nice reusable `apiFetch` wrapper. It looks type-safe, but teammates …
Mid~10 min
Tech Debt Tribunal3
Missing Pagination on a List EndpointA GET /notes endpoint returns all rows with no LIMIT. At 2M rows it times out. Add cursor-…
Mid~25 min
Polling → Server-Sent EventsA task management app polls the server every 2 seconds to check for updates. With 50,000 u…
Senior~35 min
Inline Styles → CSS ModulesA React component has 200 lines of inline style objects. Dark mode requires duplicating ev…
Junior~20 min