Engineering Interview Kit

JavaScript

Master JavaScript fundamentals, from the event loop and closures to prototypal inheritance and modern ES6+ features.

TypeScript

Deep dive into TypeScript's type system, covering generics, utility types, type guards, and advanced configurations.

Go

Learn Go internals, concurrency patterns like goroutines and channels, and practical backend engineering concepts.

Java

Comprehensive guide to Java, object-oriented principles, JVM memory management, and modern concurrency.

React

Understand React under the hood, state management, hooks, the virtual DOM, and performance optimization techniques.

Node.js

Explore Node.js architecture, event loop mechanics, streams, worker threads, and building scalable backends.

NestJS

Master enterprise backend development with NestJS, dependency injection, modules, decorators, and microservices.

SQL

Essential database concepts including complex joins, indexing strategies, ACID properties, and transaction isolation levels.

Data Structures & Algorithms

A complete guide to data structures, algorithms, and dynamic programming patterns to ace your coding interviews.

System Design

Learn how to architect large-scale distributed systems, covering caching, databases, load balancing, and scalability.

NeetCode 150

Curated list of 150 top coding interview questions grouped by patterns like Sliding Window, Two Pointers, and more.