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Practice coding, system design, behavioral, and project questions for frontier AI roles.
Every question has a public brief with the task, constraints, and follow-ups. Labels describe interactive practice access.
Reported interview periodN/A
One latency-sensitive workload and one throughput workload must coexist on eight GPUs. Define who gets in, how batches form, when preemption is allowed, and how both promises survive a lost GPU.
Practice focusScheduling policy, Batching, Fairness, Failure recovery through a written response exercise.
Reported interview periodN/A
Design a sequence that stays fast to index, accepts mutation, and can crash at any point without losing the state a reader already saw. Then make the restart path provable rather than plausible.
Practice focusData structure design, Complexity analysis, Durability, Crash recovery through a written response exercise.
Reported interview periodN/A
A posting product lets an author write now and publish later. Design the path from submission to publication, then keep it correct when authors edit, cancel, and retry while delivery fans out to followers.
Practice focusDurable scheduling, Idempotency, Race conditions, Time zones, Operational telemetry through a written response exercise.
Reported interview periodN/A
You get a short list of accepted two-word phrases and a batch of strings. Infer the rule that decides which strings belong together, implement it so the same input always yields the same partition, and say where the examples still underdetermine the answer.
Practice focusString algorithms, Specification recovery, Determinism, Edge-case analysis through a written response exercise.
Reported interview periodN/A
Two people edit one note and need to see who wrote the last line.
Practice focusConflict, Failure through a written response exercise.
Reported interview periodN/A
Where a design failed after launch, what you measured, and what you changed.
Practice focusA shipped system, Measurement through a written response exercise.