Frontier AI Technical Interview Question Bank

Topic tags
Data / SQL

Reported interview periodOct 2025

Design a nearby-places search service

Design a consumer service that returns nearby businesses with ratings, opening hours, and recent reviews. A user supplies a location, an optional query or category, and filters such as “open now.” Results shoul…

Practice focusScenario Design a consumer service that returns nearby businesses with ratings, opening hours, and recent reviews. A user supplies a location, an optional query or category, and filters such as “open now.” Results should feel fresh and should rank useful places ahead of merely close places. Assume a metropolitan launch with tens of millions of businesses globally, high read traffic, and continuous updates from business owners and reviewers. Core requirements - Search by latitude/longitude and radius, optionally constrained by text or category.…

Public brief

Topic tags
Data / SQL
Communication

Behavioral practiceBehavioralAI-generated

Written response35–50 min

Reported interview periodN/A

Build one adaptable decision story

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.

Public brief

Topic tags
Reliability
ML / AI
Data / SQL

System designSystem designAI-generated

Written response70–90 min

Reported interview periodN/A

Design an evaluation artifact registry

Design a reproducible registry connecting datasets, evaluator configurations, model outputs, and reviewed results.

Practice focusData lineage, Versioning, Idempotency, Access control, Reproducibility through a written response exercise.

Public brief

Topic tags
Algorithms
Data structures
Storage & state
Reliability
Data / SQL

OpenAISystem designAI-generated

Written response45–60 min

Reported interview periodN/A

A mutable indexed sequence that must restart exactly

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.

Public brief

Topic tags
Storage & state
Data / SQL

System designSystem design

Written response45 minutes

Reported interview periodN/A

Weekly score board

Store a score per model run and show which run is ahead this week.

Practice focusRead path, Write path through a written response exercise.

Frontier AI technical interview question bank.

Frontier AI technical interview question bank.

Design a nearby-places search service

Build one adaptable decision story

Design an evaluation artifact registry

A mutable indexed sequence that must restart exactly

Weekly score board

Design a nearby-places search service

Build one adaptable decision story

Design an evaluation artifact registry

A mutable indexed sequence that must restart exactly

Weekly score board