159 companies · 2,564 real questions
Practice the questions they actually ask. Then rehearse with someone who asked them.
Real questions from OpenAI, Anthropic, Stripe and 156 more — plus 1‑on‑1 mocks with FAANG+ engineers who've sat on the hiring side.
323 questions free · no card, no account needed
Advanced · 60 min read
Smart Grid Device Control
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- ✓ Tagged by company, with a last-reviewed date
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- companies covered
- 159
- companies covered
- real interview questions
- 2,564
- real interview questions
- free to practice
- 323
- free to practice
- from 600+ reviews
- 5.0
- from 600+ reviews
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Learn to design scalable systems like Twitter, Netflix, and Uber. Perfect for senior engineer interviews.
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Learn how to present your past projects effectively and handle deep-dive questions.
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Master behavioral questions with STAR method and leadership principles.
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Walk one full AI-enabled coding round minute by minute, and learn the five dimensions it is scored on.
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Design data pipelines, warehouses, and analytics systems at scale.
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Frequently Asked Questions
What can I do for free?
Browse all 159 companies and search the full question bank without paying. The first question in every category at every company is free — 323 questions in total. No card required.
Where do the questions come from?
Each company page lists the coding, system design, behavioral and project-retro questions candidates report being asked there, and shows when it was last reviewed. There are 2,564 questions across 159 companies today.
Who are the coaches?
Engineers from FAANG+ companies who have interviewed candidates themselves. A mock session is a real interview rehearsal followed by direct feedback on what they'd flag in the debrief.
What's the difference between Premium and coaching?
Premium ($49/month, or $399 one-time for lifetime access) unlocks every question breakdown, the full question bank and the rest of the premium content for self-study, and saves $20 on coaching sessions. Coaching is a separate 1-on-1 session with a FAANG+ interviewer, booked as you need it.
Can I cancel Premium?
Yes. The monthly plan is billed monthly and you can cancel anytime. The lifetime plan is a single payment with no renewal.
Do I need an account to look around?
No. Company pages, question search and every free question are open to everyone. Create a free account when you want to track your progress.