# Pinterest spam-detection system-design interview question

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Source: https://www.aced.io/questions/3482/design-spam-detection-pinterest
Source observed: 2026-11-05T00:31:43.347Z
Last checked: 2026-11-05T00:31:43.347+00:00
Indexed: 2026-11-06T07:56:19.539+00:00

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# Design spam detection on Pinterest.

We provide this **System Design** interview question for **Software Engineer** and **Machine Learning Engineer** candidates interviewing with **Pinterest**.

## Interview metadata

- Company: [Pinterest](https://www.aced.io/questions?company=pinterest)
- Roles: [Software Engineer](https://www.aced.io/questions?role=swe), [Machine Learning Engineer](https://www.aced.io/questions?role=ml-engineer)
- Category: [System Design](https://www.aced.io/questions?type=system-design)
- Reported last asked: 5 months ago
- Interview count shown: 2 interviews

## Interview experience

One shared experience is listed: [Pinterest Senior Software Engineer interview](https://www.aced.io/experiences/pinterest-senior-software-engineer-interview-d68c8c). The contributor described the process as good but long, wished it were quicker, and advised candidates to move through the final round quickly because hearing back afterward took a while. The experience is labeled **Software Engineer · Senior / L5** and **Pinterest · 5 months ago**.

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- [Design a language detection system.](https://www.aced.io/questions/4546/machine-learning-language-detection-system-design)

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We cover mock interviews, frameworks, advice from senior candidates, ML system design, core concepts, coding, behavioral interviews, and more. The course is described as preparation for machine learning roles at Meta, Google, Amazon, Apple, Microsoft, Nvidia, and other top companies.

### [Software Engineering Interview Prep](https://www.aced.io/courses/software-engineering)

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We cover data structures, algorithms, system design, people management, behavioral interviews, mock interviews, frameworks, and advice from senior candidates. The course is described as preparation for software engineering roles at Google, Amazon, Microsoft, Meta, Apple, and other top companies.

## Answering

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