Fireworks AI

A recruiter call, one or two live coding screens on scheduling and interval problems (idle time across GPUs is a favorite), an optional take-home built on the Fireworks API, then an onsite of coding, one or two system design rounds on model serving, and cross-team talks.

5 questions

  • Detect security attacks in text logsCodingScan text logs for patterns indicating security attacks and report the offending entries. Reported on 1point3acres' Fireworks AI bank; reconstructed in our own words.
    Last asked Oct 2026
  • Friend recommendation by mutual friendsCodingRecommend friends ranked by number of mutual friends in a social graph. Reported on 1point3acres' Fireworks AI bank; reconstructed in our own words.
    Last asked Sep 2026
  • Find all GPU idle timesCodingFrom GPU task schedules, compute every idle window where no task runs. Reported on 1point3acres' Fireworks AI bank; reconstructed in our own words.
    Last asked Jan 2026
  • Agentic RAG take-home projectCodingA take-home: build an agentic retrieval-augmented pipeline. A model with a search tool must answer questions over a document set, including questions that need more than one…
  • Merge intervals for streaming GPU tasksCodingMerge overlapping time intervals for GPU tasks arriving as a stream. Reported on 1point3acres' Fireworks AI bank; reconstructed in our own words.