The Language of Reliability: An SRE's Guide to Bulletproof Systems Senior/Staff Asked at: Google, Meta, Netflix, Cloud Providers Q: "You're the founding SRE for a fast-growing video streaming startup. How would you define and implement a reliability strategy from the ground up?" Why this matters: Th...
The Idempotency Question: Your Secret Weapon for Acing System Design Senior/Staff Asked at: Stripe, Shopify, Amazon, Netflix, FinTech Q: "You're designing a payment API. A client might send the same `create_payment` request twice due to a network timeout. How do you prevent the customer from being c...
How to Explain SAML Without Sounding Like a Textbook Mid/Senior Asked at: Salesforce, Microsoft, Okta, Enterprise SaaS Q: "Can you walk me through how SAML works? Let's say we need to integrate our SaaS app with a large enterprise customer's identity system for Single Sign-On." Why this matters: Thi...
The Reliability Dial: How to Answer 'How Did You Improve System Reliability?' Senior/Staff Engineer Asked at: Google, Netflix, Uber, Startups with scale Q: "Tell me about a time you significantly improved the reliability of a production system." Why this matters: This isn't a question about bug-fixi...
The Fog of War: Answering "Tell me about a decision you made with incomplete data." Senior/Staff Engineer Asked at: FAANG, Stripe, Cloudflare, Datadog Q: "Tell me about a time you had to make a critical decision with incomplete information. How did you approach it, and what was the outcome?" Why thi...