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Mock Interviews

1How much time does it take?2Rejections 3I need experience to get experience 4Referral 5CV 6How to stand out 7Investigate the company 8Useful resources

Do and Don'ts 10Be human Why do you want to work at our company Why are you switching Technical questions from HR What are your salary expectations Interview with the Hiring Manager

16Before We Begin Try to talk about the problems of the system instead of the advantages What is Concurrency ACID Isolation levels And Common Sense Isolation levels And The Twist Optimistic and Pessimistic locks A Bit More About Locks Indexes, Part 1: Main Types Indexes, Part 2: Composite index Indexes, Part 3: Clustered vs Non-Clustered Indexes, Part 4: Geospatial SQL traps, Part 1 SQL traps, Part 2 SQL traps, Part 3 How to improve a slow database Problems with ORMs Troubles with distributed systems Monolith vs Microservices gRPC vs HTTP RabbitMQ and Kafka How do you deal with traffic Kubernetes: Part 1, Recap Kubernetes: Part 2, Interview Kubernetes: Part 3, GitOps The Problem with Open Source

42Leetcode Home Coding Interview

44Prepare the whiteboard What NOT to do Back-of-the-Envelope Math SQL vs NoSQL CAP Protocols Universal Patterns Know the Tricks, Part 1 Know the Tricks, Part 2 Know the Tricks, Part 3 All the concepts

55Intro Focus on the Business Need What is SCRUM From Idea to Production How Do You Test Observability What is your code smell How can you deal with an argument at work I need to give you more work at the end of the sprint

64State of Tech Today AI Enthusiasm Determinism vs Non-Determinism Tokenomics

68Salary Negotiation How to pass the probation period Sell Yourself Story of 2 Engineers Who Wanted a Promotion

72Interview is not an exam Which Grades to Apply to HRs are ghosting me Gut feeling My company offers me more money Books to Read Good and seamless habits Afterword

Course

Course

Mock Interviews

1How much time does it take?2Rejections 3I need experience to get experience 4Referral 5CV 6How to stand out 7Investigate the company 8Useful resources

Do and Don'ts 10Be human Why do you want to work at our company Why are you switching Technical questions from HR What are your salary expectations Interview with the Hiring Manager

16Before We Begin Try to talk about the problems of the system instead of the advantages What is Concurrency ACID Isolation levels And Common Sense Isolation levels And The Twist Optimistic and Pessimistic locks A Bit More About Locks Indexes, Part 1: Main Types Indexes, Part 2: Composite index Indexes, Part 3: Clustered vs Non-Clustered Indexes, Part 4: Geospatial SQL traps, Part 1 SQL traps, Part 2 SQL traps, Part 3 How to improve a slow database Problems with ORMs Troubles with distributed systems Monolith vs Microservices gRPC vs HTTP RabbitMQ and Kafka How do you deal with traffic Kubernetes: Part 1, Recap Kubernetes: Part 2, Interview Kubernetes: Part 3, GitOps The Problem with Open Source

42Leetcode Home Coding Interview

44Prepare the whiteboard What NOT to do Back-of-the-Envelope Math SQL vs NoSQL CAP Protocols Universal Patterns Know the Tricks, Part 1 Know the Tricks, Part 2 Know the Tricks, Part 3 All the concepts

55Intro Focus on the Business Need What is SCRUM From Idea to Production How Do You Test Observability What is your code smell How can you deal with an argument at work I need to give you more work at the end of the sprint

64State of Tech Today AI Enthusiasm Determinism vs Non-Determinism Tokenomics

68Salary Negotiation How to pass the probation period Sell Yourself Story of 2 Engineers Who Wanted a Promotion

72Interview is not an exam Which Grades to Apply to HRs are ghosting me Gut feeling My company offers me more money Books to Read Good and seamless habits Afterword

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Get Hired/Interview/System Design

11 chapters · 1 free

System Design Interview Questions

System design rounds reward a method, not a memorised diagram. These chapters give you one you can run on a whiteboard under pressure.

Prepare the whiteboardFreeChoose your diagramming tool before the interview — not during it. 90% of the time the interviewer will ask you to share your screen and hand you nothing.
What NOT to doSkip the Back-of-the-Envelope Math This is when at the beginning of the interview you start asking: how many users do we have, how many requests per user…
Back-of-the-Envelope MathWhat Is It? This is when at the beginning of the interview you start asking: how many users do we have, how many requests per user do we expect, and so…
SQL vs NoSQLAvoid This Debate Right Away When it's time to choose a database in the middle of your design, don't start digging into the exact type of database you…
CAPOne of the ways to frame your system design solution is to address the problem in terms of the CAP theorem. But there's a tweak — and each tweak is where…
ProtocolsSystem design interviews rarely test you on protocol trivia. What they do test is whether you know which tool fits which problem — and can say why in one…
Universal PatternsHere I have gathered the most popular System Design patterns, which apply to almost every system.
Know the Tricks, Part 1Every system design interview has its "aha moment" — the trick that shows the interviewer you actually understand how these systems work at scale. I have…
Know the Tricks, Part 2Ride-Sharing / Location Services (Uber, Lyft, Bolt) The Trick: Geohashing with In-Memory Geospatial Index Don't store driver locations in a regular…
Know the Tricks, Part 3Rate Limiter What Is It? A rate limiter stops one user (or IP) from sending too many requests too fast. Example: "Max 100 API calls per minute per user."…
All the conceptsThese are literally all the concepts you need to know to pass the interview. The ingredients you make a cake from. Check the ones you are missing.