# Design a user login system

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Source: https://www.aced.io/questions/4631/design-user-login-system
Source observed: 2026-11-04T23:28:13.463Z
Last checked: 2026-11-04T23:28:13.463+00:00
Indexed: 2026-11-05T10:59:41.907+00:00

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# Design a user login system

We provide this System Design interview question for Forward Deployed Engineer and Software Engineer candidates. It is associated with Stripe and Visa and has two interviews; the latest reported interview was 5 months ago. Detailed company statistics are available through [Upgrade](https://www.aced.io/upgrade?src=questions).

## Interview experience

One experience is shared:

- [Stripe Forward Deployed Engineer interview](https://www.aced.io/experiences/stripe-forward-deployed-engineer-interview-5498d0)

  ![Stripe](https://exponent-static.s3.amazonaws.com/company_logos/stripe.png)

  Stripe · 5 months ago · Forward Deployed Engineer

  > This was a really quick process for me: recruiter chat, two technical phone screens, then four final-round interviews. The early rounds covered broad web-dev fundamentals, debugging, and a small API-to-UI coding task that later got expanded in the onsite. The final loop felt more performative than most because there was clearly a hidden rubric beyond just solving the prompt, especially around communication, customer instincts, and how I use AI while coding. The coding round explicitly allowed AI, but they seemed to care much more about whether I could break work down, steer the model, and review it critically than whether I could one-shot a solution. The behavioral side also cared a lot about why Stripe and whether I really wanted a customer-facing role like this.

## Community answers

No answers have been contributed by the community yet.

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Prepare for software-engineering roles with mock interviews, frameworks, and advice from senior candidates. Topics include data structures, algorithms, system design, people management, behavioral interviews, and more.

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