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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
Compute ordered rolling metrics, then partition state and expose freshness explicitly.
Practice focusPython, Queues, Streaming state, Boundaries, Observability through a runnable coding exercise.
Reported interview periodN/A
Aggregate pass rates, enforce minimum support, and compare evaluation runs without hiding weak slices.
Practice focusPython, Aggregation, Evaluation, Statistical hygiene, Determinism through a runnable coding exercise.
Reported interview periodN/A
Turn one real experience into a concise story, then answer increasingly specific follow-ups without inventing evidence.
Practice focusEvidence selection, Concise communication, Conflict, Reflection through a written response exercise.
Reported interview periodN/A
Connect motivation and scope to evidence from your work, then handle gaps, priorities, and expectations directly.
Practice focusMotivation, Role fit, Scope, Self-awareness, Questions through a written response exercise.
Reported interview periodN/A
Use one real experience to show how you made a consequential decision under incomplete evidence and designed a safe reversal path.
Practice focusJudgment, Evidence, Disagreement, Risk control, Reflection through a written response exercise.
Reported interview periodN/A
Practice aligning a broad research-engineering role with evidence, boundaries, first-quarter priorities, and questions for the manager.
Practice focusRole fit, Prioritization, Scope, Self-awareness, Manager questions through a written response exercise.
Reported interview periodN/A
Practice turning a research, product, and infrastructure disagreement into an owned decision without flattening the real risks.
Practice focusDisagreement, Decision rights, Cross-functional leadership, Escalation, Communication through a written response exercise.
Reported interview periodN/A
Practice showing how you improved a team’s decisions or delivery beyond the output of your own individual work.
Practice focusLeadership, Delegation, Mentorship, Team systems, Impact through a written response exercise.
Reported interview periodN/A
High-volume document review needs extraction, model judgment, evidence links, and a human queue whose decisions can be defended later. Design the pipeline and the versioning that keep it auditable.
Practice focusPipeline design, Evidence linking, Human-in-the-loop review, Versioning through a written response exercise.
Reported interview periodN/A
An in-memory grade book with a ranking that does not treat a missing score as zero.
Practice focusState, Ranking, Edge cases through a written response exercise.
Reported interview periodN/A
Return the vials that stayed inside a temperature range for their whole stay.
Practice focusScanning, Missing data through a written response exercise.
Reported interview periodN/A
Collapse consecutive comments on the same path into one batch.
Practice focusOrder, Grouping through a written response exercise.
Reported interview periodN/A
Return one valid order of steps, or report a cycle.
Practice focusOrdering, Cycles through a written response exercise.
Reported interview periodN/A
Store a score per model run and show which run is ahead this week.
Practice focusRead path, Write path through a written response exercise.
Reported interview periodN/A
A story about slowing a launch because a safety check was thin.
Practice focusJudgment, A specific story through a written response exercise.
Reported interview periodN/A
A disagreement about training on customer text.
Practice focusDisagreement, Limits through a written response exercise.
Reported interview periodN/A
Two minutes on why this lab's work fits a project you have done.
Practice focusA concrete project through a written response exercise.
Reported interview periodN/A
What you would cut if the team lost half its people.
Practice focusPriorities, A hard conversation through a written response exercise.
Reported interview periodN/A
Turn a folder of notes into a table of titles and word counts.
Practice focusA small program, What you left out through a written response exercise.
Reported interview periodN/A
Explain one result you trust, what would falsify it, and what was not shown.
Practice focusEvidence, Limits through a written response exercise.