Interview experience -2
Cleared Google and Meta after 5 months of grind [L5 Offer] I've been meaning to write this for quite some time and finally got to it today. This is me…
Interview experience – 1 -Staff Engineer
Staff Engineer offer - how I prepared and interview experience Got offer from Reddit for the staff engineer role for their infra (Remote, US). I have ~6 YOE. This was…
Code Interview Checklist
Ask for clarifications on user input, constaints….etc Discuss multiple approaches and trade-offs (i.e discussed a brute force solution and its time complexity as well as an improvement and the new…
System Design Questions
-----Question 1: Design a Distributed Metrics Logging and Aggregation SystemCompany(s) asked: Google, Facebook, Amazon, eBay, Datadog, Atlassian-----Question 2: Design a Distributed Stream Processing System like KafkaCompany(s) asked: Amazon, Microsoft, Wise,…
Tree Graph DSA QA
⸻ Tree Answers Basic Questions 1. What is the difference between a binary tree and a binary search tree (BST)? • A binary tree is a tree where each node…
NeetCode 150
CategoryPatterns# QuestionsEasyMediumHardComplexity (Avg Case)ArraysSliding Window, Two Pointers, Prefix Sum18594O(N) - O(N log N)StringsHashing, Two Pointers, Sliding Window14473O(N)Linked ListFast & Slow Pointers, Recursion10352O(N)Stacks & QueuesMonotonic Stack, LRU Cache12273O(N)Binary SearchSearch Space Reduction,…
NeetCode 150 – Study Roadmap
NeetCode 150 - Priority-Based Study Roadmap This roadmap is structured priority-wise, optimizing for FAANG interviews. It assumes 2-3 hours of practice per day and categorizes topics into high-priority, mid-priority,…
DSA Advanced Optimization Techniques
Optimization TechniqueUsed ForTime Complexity ImprovementSpace Complexity ImprovementExplanationSpace Optimization (In-Place Computation)Modify array in-place (e.g., Remove Duplicates)No changeO(N) → O(1)Modifies input data without extra space to save memory. Used in in-place sorting,…
DSA Optimization Techniques
Below is a breakdown of essential optimization techniques used in arrays, graphs, dynamic programming, and advanced data structures. 
1. Preprocessing Techniques 
Use extra space to reduce time complexity.…
AWS ECS
AWS ECS (Elastic Container Service) Amazon Elastic Container Service (ECS) is a fully managed container orchestration service that allows you to run, stop, and manage Docker containers on a cluster of…