Scale AI system design interview

Questions Scale AI asks in this round 6

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  Design a pipeline around embedding and classification servicesML designYou have two services, one that embeds items and one that classifies them. Design the API and the pipeline that uses them to process incoming data: how requests flow, batching…

  Last asked Jul 2026Were you asked this too?
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  ML fundamentals deep dive for ML rolesML designAfter a short walk through your resume, expect fast questions on machine learning basics, usually centred on your own area (language models, vision, recommendations). For each…

  Last asked Feb 2026Were you asked this too?
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  Design a distributed job schedulerSystem designDesign a service that runs millions of scheduled and on-demand jobs (cron-like and one-off) reliably across a fleet of workers.

  Last asked Jul 2026Were you asked this too?
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  Design a ticket booking systemSystem designSell seats for concerts and games where demand spikes the moment sales open: hold seats briefly, never sell one twice, and stay up under the rush.

  Last asked Dec 2025Were you asked this too?
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  Implement a universal adversarial attack on GPT-2 from a paperML designA long take-home notebook: read the paper on universal, transferable adversarial attacks on aligned language models (the greedy coordinate gradient attack) and implement its…

  Possibly retiredWere you asked this too?
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  Evaluate a new LLM before launchML designYou have a new model checkpoint. Design the evaluation process that decides whether it ships.

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